Molybdenum is a chemical element with atomic number 42 which means there are 42 protons and 42 electrons in the atomic structure. Gallium does not occur as a free element in nature, but as gallium(III) compounds in trace amounts in zinc ores and in bauxite. The chemical symbol for Fluorine is F. Fluorine is the lightest halogen and exists as a highly toxic pale yellow diatomic gas at standard conditions. Zirconium is mainly used as a refractory and opacifier, although small amounts are used as an alloying agent for its strong resistance to corrosion. All Rights Reserved. Mass was no longer considered unchangeable in the closed system. The chemical symbol for Sulfur is S. Sulfur is abundant, multivalent, and nonmetallic. The chemical symbol for Lutetium is Lu. About This Site In nuclear industry, especially natural and artificial samarium 149 has an important impact on the operation of a nuclear reactor. The chemical symbol for Berkelium is Bk. The unit of measure for mass is the atomic mass unit (amu). The chemical symbol for Cerium is Ce. The chemical symbol for Neptunium is Np. Sulfur is a chemical element with atomic number 16 which means there are 16 protons and 16 electrons in the atomic structure. Gold is a transition metal and a group 11 element. Calcium is an alkaline earth metal, it is a reactive pale yellow metal that forms a dark oxide-nitride layer when exposed to air. Gold is a chemical element with atomic number 79 which means there are 79 protons and 79 electrons in the atomic structure. Uranium has the highest atomic weight of the primordially occurring elements. talk. Molar mass of In2O3 = 277.6342 g/mol Convert grams Indium(III) Oxide to moles or moles Indium(III) Oxide to grams. The chemical symbol for Mercury is Hg. Neodymium is not found naturally in metallic form or unmixed with other lanthanides, and it is usually refined for general use. Nitrogen is a chemical element with atomic number 7 which means there are 7 protons and 7 electrons in the atomic structure. Given that 37.1% of natural rhenium is rhenium-185, what is the other stable isotope? Manganese is a chemical element with atomic number 25 which means there are 25 protons and 25 electrons in the atomic structure. The chemical symbol for Magnesium is Mg. Magnesium is a shiny gray solid which bears a close physical resemblance to the other five elements in the second column (group 2, or alkaline earth metals) of the periodic table: all group 2 elements have the same electron configuration in the outer electron shell and a similar crystal structure. Argon is a chemical element with atomic number 18 which means there are 18 protons and 18 electrons in the atomic structure. Hassium is a chemical element with symbol Hs and atomic number 108. The free element, produced by reductive smelting, is a hard, lustrous, silver-gray metal. It is the heaviest essential mineral nutrient. The chemical symbol for Neodymium is Nd. Indium (atomic symbol: In, atomic number: 49) is a Block P, Group 13, Period 5 element with an atomic weight of 114.818. The atomic mass is the mass of an atom. Indium is a soft silvery-white metal. The chemical symbol for Chlorine is Cl. Indium (atomic mass `=114.82`) has two naturally occurring isotopes, the predominant one from has isotopic mass `114.9041` and abundance of `95.72%`. Its extreme rarity in the Earth’s crust, comparable to that of platinum. Krypton is a chemical element with atomic number 36 which means there are 36 protons and 36 electrons in the atomic structure. The chemical symbol for Uranium is U. Indium is used to coat high speed bearings and as an alloy that lowers the melting point of other metals. The atomic mass of indium is 114.818 amu. It occurs on Earth as the decay product of various heavier elements. Holmium is a relatively soft and malleable silvery-white metal. Manganese is a metal with important industrial metal alloy uses, particularly in stainless steels. Discovered by Reich and Richter, who later isolated the metal. Typical densities of various substances are at atmospheric pressure. Gadolinium belongs to a rare earth elements (it is one of a set of seventeen chemical elements in the periodic table). Indium is the softest metal that is not an alkali metal. One unified atomic mass unit is approximatelythe mass of one nucleon (either a single proton or neutron) and is numerically equivalent to 1 g/mol. Natural boron consists primarily of two stable isotopes, 11B (80.1%) and 10B (19.9%). The chemical symbol for Francium is Fr. Chlorine is a chemical element with atomic number 17 which means there are 17 protons and 17 electrons in the atomic structure. The atomic weights used on this site come from NIST, the National Institute of Standards and Technology. This website was founded as a non-profit project, build entirely by a group of nuclear engineers. Despite its high price and rarity, thulium is used as the radiation source in portable X-ray devices. is a rare earth element with a metallic silver luster. The chemical symbol for Astatine is At. Molybdenum a silvery metal with a gray cast, has the sixth-highest melting point of any element. Thorium is moderately hard, malleable, and has a high melting point. Fluorine is a chemical element with atomic number 9 which means there are 9 protons and 9 electrons in the atomic structure. Cadmium is a chemical element with atomic number 48 which means there are 48 protons and 48 electrons in the atomic structure. The chemical symbol for Platinum is Pt. Correct Test Weight Handling Guide: 12 Practical Tips. The mention of names of specific companies or products does not imply any intention to infringe their proprietary rights. Only about 5×10−8% of all matter in the universe is europium. The chemical symbol for Yttrium is Y. Yttrium is a silvery-metallic transition metal chemically similar to the lanthanides and has often been classified as a “rare-earth element”. Indium is a rare metal which has found little use. It rarely occurs in its elemental state or as pure ore compounds in the Earth’s crust. Neon is a chemical element with atomic number 10 which means there are 10 protons and 10 electrons in the atomic structure. Actinium is a soft, silvery-white radioactive metal. It is one of the post-transition metals in the group that makes up 0.21 parts per million of the Earth's crust. Entire website is based on our own personal perspectives, and do not represent the views of any company of nuclear industry. Erbium is a chemical element with atomic number 68 which means there are 68 protons and 68 electrons in the atomic structure. It is a member of the chalcogen group on the periodic table, a highly reactive nonmetal, and an oxidizing agent that readily forms oxides with most elements as well as with other compounds. Atomic data: Nuclear data: Index Periodic Table Chemistry concepts Reference Pauling Ch. Indium has two naturally occurring isotopes and a weighted average atomic mass of 114.82 u. The chemical symbol for Actinium is Ac. Zirconium is a lustrous, grey-white, strong transition metal that resembles hafnium and, to a lesser extent, titanium. Melting Point Barium is the fifth element in group 2 and is a soft, silvery alkaline earth metal. Carbon is one of the few elements known since antiquity. edit. Terbium is a chemical element with atomic number 65 which means there are 65 protons and 65 electrons in the atomic structure. Ytterbium is a chemical element with atomic number 70 which means there are 70 protons and 70 electrons in the atomic structure. Berkelium is a member of the actinide and transuranium element series. Our Website follows all legal requirements to protect your privacy. The chemical symbol for Cobalt is Co. Cobalt is found in the Earth’s crust only in chemically combined form, save for small deposits found in alloys of natural meteoric iron. The chemical symbol for Selenium is Se. The chemical symbol for Bismuth is Bi. Neutron number is rarely written explicitly in nuclide symbol notation, but appears as a subscript to the right of the element symbol. Einsteinium is a chemical element with atomic number 99 which means there are 99 protons and 99 electrons in the atomic structure. Molar Mass: 114.818. Cerium is a soft, ductile and silvery-white metal that tarnishes when exposed to air, and it is soft enough to be cut with a knife. The chemical symbol for Lithium is Li. Indium ist ein seltenes, silberweißes und weiches Schwermetall. Indium is a soft silvery-white metal. 28 . In this article, let’s take a look at the 10 important uses of indium! Indium (In) Atomic Data for Indium (In) Atomic Number = 49 Atomic Weight = 114.82 Reference E95 : Isotope : Mass : Abundance : Spin : Mag Moment : 113 In: 112.904061: 4.3%: 9/2 +5.5229: 115 In: 114.903800: 95.7%: 9/2 +5.534: In I Ground State 1s 2 2s 2 2p 6 … Lanthanoids comprise the 15 metallic chemical elements with atomic numbers 57 through 71, from lanthanum through lutetium. 3. agreement. Name Pure radium is silvery-white alkaline earth metal. Silicon is a chemical element with atomic number 14 which means there are 14 protons and 14 electrons in the atomic structure. Weights of atoms and isotopes are from NIST article. Tantalum is a chemical element with atomic number 73 which means there are 73 protons and 73 electrons in the atomic structure. It is the fifth most abundant element in Earth’s crust and the third most abundant metal, after iron and aluminium. Comments The chemical symbol for Lead is Pb. ››Indium(III) Oxide molecular weight. One atomic mass unit is equal to 1.66 x 10-24 grams. Promethium is a chemical element with atomic number 61 which means there are 61 protons and 61 electrons in the atomic structure. If you continue to use this site we will assume that you are happy with it. Holmium is a chemical element with atomic number 67 which means there are 67 protons and 67 electrons in the atomic structure. Naturally occurring indium contains a mixture of indium-112 and indium-115. Thorium is commonly found in monazite sands (rare earth metals containing phosphate mineral). Zirconium is a chemical element with atomic number 40 which means there are 40 protons and 40 electrons in the atomic structure. It is one of the least reactive chemical elements and is solid under standard conditions. Its physical and chemical properties are most similar to its heavier homologues strontium and barium. The chemical symbol for Barium is Ba. Technetium is the lightest element whose isotopes are all radioactive; none are stable. Thallium is a chemical element with atomic number 81 which means there are 81 protons and 81 electrons in the atomic structure. Sodium is a chemical element with atomic number 11 which means there are 11 protons and 11 electrons in the atomic structure. It wets glass, as does gallium. Cobalt is a chemical element with atomic number 27 which means there are 27 protons and 27 electrons in the atomic structure. Lawrencium is the final member of the actinide series. Date of Discovery Indium (atomic symbol: In, atomic number: 49) is a Block P, Group 13, Period 5 element with an atomic weight of 114.818. Electronegativity according to Pauling A freshly exposed surface of pure copper has a reddish-orange color. Lanthanum is a soft, ductile, silvery-white metal that tarnishes rapidly when exposed to air and is soft enough to be cut with a knife. Classified as a post-transition metal, Indium is a solid at room temperature. Fermium is a member of the actinide series. Bromine is the third-lightest halogen, and is a fuming red-brown liquid at room temperature that evaporates readily to form a similarly coloured gas. Nearly all technetium is produced synthetically, and only minute amounts are found in the Earth’s crust. Platinum is a dense, malleable, ductile, highly unreactive, precious, silverish-white transition metal. Before that time it was thought that the formula was InO. 49 protons, 49 neutrons. The chemical symbol for Mendelevium is Md. Consider the element indium, atomic number 49, atomic mass 114.8 g. The nucleus of an atom of indium-112 contains. Sodium is a soft, silvery-white, highly reactive metal. Standard atomic weight Ar, standard(In) 114.818 (1) view. Technetium is a chemical element with atomic number 43 which means there are 43 protons and 43 electrons in the atomic structure. Like all alkali metals, lithium is highly reactive and flammable, and is stored in mineral oil. Radium is a chemical element with atomic number 88 which means there are 88 protons and 88 electrons in the atomic structure. It is the eponym of the lanthanide series, a group of 15 similar elements between lanthanum and lutetium in the periodic table, of which lanthanum is the first and the prototype. Lutetium is a silvery white metal, which resists corrosion in dry air, but not in moist air. Thanks to its good ductility, strong plasticity, low melting point, high boiling point, low resistance, corrosion resistance, etc., indium is widely used in industry and our everyday life. Chemically, indium is similar to gallium and thallium. Oxygen is a chemical element with atomic number 8 which means there are 8 protons and 8 electrons in the atomic structure. Under normal conditions, sulfur atoms form cyclic octatomic molecules with a chemical formula S8. Reich began to suspect that thi… Lead is soft and malleable, and has a relatively low melting point. The chemical symbol for Iodine is I. Iodine is the heaviest of the stable halogens, it exists as a lustrous, purple-black metallic solid at standard conditions that sublimes readily to form a violet gas. Like all elements with atomic number over 100, nobelium can only be produced in particle accelerators by bombarding lighter elements with charged particles. Rare Earth Elements, Basic Information | Atomic Structure | Isotopes | Related Links | Citing This Page. The chemical symbol for Boron is B. Barium is a chemical element with atomic number 56 which means there are 56 protons and 56 electrons in the atomic structure. Indium wasn't named because of the country of India but instead the way it was discovered. Naturally occurring potassium is composed of three isotopes, of which 40K is radioactive. The first alloy used on a large scale was bronze, made of tin and copper, from as early as 3000 BC. Osmium is a chemical element with atomic number 76 which means there are 76 protons and 76 electrons in the atomic structure. Lead is widely used as a gamma shield. The chemical symbol for Dysprosium is Dy. It is a noble metal and a member of the platinum group. Indium is a chemical element with the symbol In and atomic number 49. d. 49 protons, 63 neutrons. Tungsten is an intrinsically brittle and hard material, making it difficult to work. Im Periodensystem der Elemente steht es in der 5. There are over 100 different borate minerals, but the most common are: borax, kernite, ulexite etc. The chemical symbol for Chromium is Cr. Tin is a chemical element with atomic number 50 which means there are 50 protons and 50 electrons in the atomic structure. Americium is a transuranic member of the actinide series, in the periodic table located under the lanthanide element europium, and thus by analogy was named after the Americas. Lead is a heavy metal that is denser than most common materials. The chemical symbol for Titanium is Ti. Copper is a soft, malleable, and ductile metal with very high thermal and electrical conductivity. Bismuth is a chemical element with atomic number 83 which means there are 83 protons and 83 electrons in the atomic structure. Its properties are thus intermediate between those of chlorine and iodine. Silver is a chemical element with atomic number 47 which means there are 47 protons and 47 electrons in the atomic structure. Gold is a bright, slightly reddish yellow, dense, soft, malleable, and ductile metal. Gallium is a chemical element with atomic number 31 which means there are 31 protons and 31 electrons in the atomic structure. Polonium is a rare and highly radioactive metal with no stable isotopes, polonium is chemically similar to selenium and tellurium, though its metallic character resembles that of its horizontal neighbors in the periodic table: thallium, lead, and bismuth. The chemical symbol for Californium is Cf. This page was created by Yinon Bentor. It is a synthetic element (first synthesised at Hasse in Germany) and radioactive. In nuclear industry cadmium is commonly used as a thermal neutron absorber due to very high neutron absorption cross-section of 113Cd. Discoverer: Coster, Dirk and De Hevesy, George Charles, Discoverer: Elhuyar, Juan José and Elhuyar, Fausto, Discoverer: Noddack, Walter and Berg, Otto Carl and Tacke, Ida. Copyright © 1996-2012 Yinon Bentor. Atomic mass of Indium is 114.818 u. In fact their absorption cross-sections are the highest among all stable isotopes. Plutonium is a chemical element with atomic number 94 which means there are 94 protons and 94 electrons in the atomic structure. Atomic mass of Indium is 114.818 u. Hauptgruppe, der 13. The chemical symbol for Gadolinium is Gd. The chemical symbol for Einsteinium is Es. Indium is a chemical element with symbol In and atomic number 49. The most commonly used spontaneous fission neutron source is the radioactive isotope californium-252. Uses. Units of measure have been defined for mass and energy on the atomic scale to make measurements more convenient to express. The chemical symbol for Hafnium is Hf. Nobelium is the tenth transuranic element and is the penultimate member of the actinide series. Argon is mostly used as an inert shielding gas in welding and other high-temperature industrial processes where ordinarily unreactive substances become reactive; for example, an argon atmosphere is used in graphite electric furnaces to prevent the graphite from burning. Neptunium is the first transuranic element. Curium is a hard, dense, silvery metal with a relatively high melting point and boiling point for an actinide. Isotope abundances of indium. Atomic Mass of Indium. The chemical symbol for Arsenic is As. Name: Indium ['ɪndiəm] Formula: In. Plutonium is an actinide metal of silvery-gray appearance that tarnishes when exposed to air, and forms a dull coating when oxidized. All of its isotopes are radioactive. It is the fourth most common element in the Earth’s crust. The ninth member of the lanthanide series, terbium is a fairly electropositive metal that reacts with water, evolving hydrogen gas. e. 49 protons, 112 neutrons. Indium wire. By mass, aluminium makes up about 8% of the Earth’s crust; it is the third most abundant element after oxygen and silicon and the most abundant metal in the crust, though it is less common in the mantle below. Pure germanium is a semiconductor with an appearance similar to elemental silicon. Commercially, thallium is produced as a byproduct from refining of heavy metal sulfide ores. In-113 has a mass of 112.904 amu and an abundance of 4.3%. Uranium is a chemical element with atomic number 92 which means there are 92 protons and 92 electrons in the atomic structure. The chemical symbol for Osmium is Os. We can determine the neutron number of certain isotope. Thulium is the thirteenth and third-last element in the lanthanide series. It readily forms hard, stable carbides in alloys, and for this reason most of world production of the element (about 80%) is used in steel alloys, including high-strength alloys and superalloys. Phosphorus is a chemical element with atomic number 15 which means there are 15 protons and 15 electrons in the atomic structure. Rhenium is a silvery-white, heavy, third-row transition metal in group 7 of the periodic table. Thulium is an easily workable metal with a bright silvery-gray luster. Palladium is a chemical element with atomic number 46 which means there are 46 protons and 46 electrons in the atomic structure. x (112.9041) + (1 - x) (114.9039) = 114.818 b. Copernicium - Atomic Mass - Atomic Weight - Cn, What is Atomic Mass - Isotopic Mass - Definition, Arsenic - Atomic Mass - Atomic Weight - As, Actinium - Atomic Mass - Atomic Weight - Ac, Polonium - Atomic Mass - Atomic Weight - Po, Antimony - Atomic Mass - Atomic Weight - Sb, Cadmium – Atomic Mass – Atomic Weight – Cd. Atomic Mass of Indium Atomic mass of Indium is 114.818 u. Atomic Mass The bulk properties of astatine are not known with any certainty. The chemical symbol for Iridium is Ir. The chemical symbol for Polonium is Po. The origin of the name is from the Indigo color seen in its spectrum. Thorium metal is silvery and tarnishes black when exposed to air, forming the dioxide. Discoverer: Priestley, Joseph and Scheele, Carl Wilhelm, Discoverer: Ramsay, William and Travers, Morris, Discoverer: Ramsay, Sir William and Strutt, John (Lord Rayleigh), Discoverer: Del Rio, Andrés Manuel (1801) and Sefström, Nils Gabriel (1830), Discoverer: Lecoq de Boisbaudran, Paul-Émile, Discoverer: Ramsay, Sir William and Travers, Morris, Discoverer: Bunsen, Robert Wilhelm and Kirchhoff, Gustav Robert, Discoverer: Perrier, Carlo and Segrè, Emilio, Discoverer: Reich, Ferdinand and Richter, Hieronymus, Discoverer: Müller von Reichenstein, Franz Joseph, Discoverer: Ramsay, William and Travers, Morris William, Discoverer: Kirchhoff, Gustav and Bunsen, Robert. Discoverer: Davy, Sir H. and Thénard, L.-J. The chemical symbol for Europium is Eu. The chemical symbol for Zinc is Zn. The atomic mass or relative isotopic mass refers to the mass of a single particle, and therefore is tied to a certain specific isotope of an element. Indium is a silver-white and slightly bluish metal, with element symbol In, atomic number 49, relative atomic mass 114.8. Molar mass of In2I4 = 737.25388 g/mol. Indium has two naturally occurring isotopes and an atomic mass of 114.818 amu. 187/75 Re. Dysprosium is used for its high thermal neutron absorption cross-section in making control rods in nuclear reactors, for its high magnetic susceptibility in data storage applications. It is in the 13th group and 5th period of the periodic table. Indium was formed by the s-process in low mass and medium mass stars. Hafnium is a chemical element with atomic number 72 which means there are 72 protons and 72 electrons in the atomic structure. The atomic mass of indium is 114.82 amu. Indium was discovered by Reich and Richter in 1863. c. 49 protons, 49 alpha particles. It is occasionally found in native form as elemental crystals. These elements, along with the chemically similar elements scandium and yttrium, are often collectively known as the rare earth elements. Carbon is a chemical element with atomic number 6 which means there are 6 protons and 6 electrons in the atomic structure. The chemical symbol for Rubidium is Rb. Indium is used to dope germanium to make transistors. Generally speaking, some electrochemical methods with high sensitivity and small-size for the detection of Ga and In have … Indium has 39 known isotopes, ranging in mass from 97 to 135. The chemical symbol for Nitrogen is N. Nitrogen is a colourless, odourless unreactive gas that forms about 78% of the earth’s atmosphere. Germanium is a chemical element with atomic number 32 which means there are 32 protons and 32 electrons in the atomic structure. Selenium is a nonmetal with properties that are intermediate between the elements above and below in the periodic table, sulfur and tellurium, and also has similarities to arsenic. For other isotopes, the isotopic mass usually differs and is usually within 0.1 u of the mass number. Praseodymium is a chemical element with atomic number 59 which means there are 59 protons and 59 electrons in the atomic structure. Francium is a chemical element with atomic number 87 which means there are 87 protons and 87 electrons in the atomic structure. It is sometimes used as a low temperature soldering compound. Neodymium is a chemical element with atomic number 60 which means there are 60 protons and 60 electrons in the atomic structure. Name: Indium Symbol: In Atomic Number: 49 Atomic Mass: 114.818 amu Melting Point: 156.61 °C (429.76 K, 313.898 °F) Boiling Point: 2000.0 °C (2273.15 K, 3632.0 °F) Number of Protons/Electrons: 49 Number of Neutrons: 66 Classification: Other Metals Crystal Structure: Tetragonal Density @ 293 K: 7.31 g/cm 3 Color: Silverish Atomic Structure Promethium is one of only two such elements that are followed in the periodic table by elements with stable forms. The chemical symbol for Indium is In. Zinc is a chemical element with atomic number 30 which means there are 30 protons and 30 electrons in the atomic structure. Osmium is the densest naturally occurring element, with a density of 22.59 g/cm3. Note that, each element may contain more isotopes, therefore this resulting ato… The most stable known isotope, 269Hs, has a half-life of approximately 9.7 seconds. The chemical symbol for Tungsten is W. Tungsten is a rare metal found naturally on Earth almost exclusively in chemical compounds. Mendelevium is a metallic radioactive transuranic element in the actinide series, it is the first element that currently cannot be produced in macroscopic quantities. Under standard conditions, it is the lightest metal and the lightest solid element. Lead is a chemical element with atomic number 82 which means there are 82 protons and 82 electrons in the atomic structure. One of the isotopes has a mass of 112.9043 u. Discoverer: Corson, Dale R. and Mackenzie, K. R. The actinide or actinoid series encompasses the 15 metallic chemical elements with atomic numbers from 89 to 103, actinium through lawrencium. Elemental sulfur is a bright yellow crystalline solid at room temperature. The melting point of Indium metal is 157 ̊C. 49 protons, 63 neutrons, 49 electrons. Compound: Moles: Weight, g: In: Elemental composition of In. It has an estimated density of 40.7 x 103 kg/m3. The chemical symbol for Molybdenum is Mo. Californium is an actinide element, the sixth transuranium element to be synthesized, and has the second-highest atomic mass of all the elements that have been produced in amounts large enough to see with the unaided eye (after einsteinium). Melting alloys freshly exposed surface of pure copper has a mass of 112.904 amu and atomic. And 31 electrons in the atomic structure of in sulfur, he decomposed the remaining material with hydrochloric acid 29! Of lead shield is in its compactness due to its group neighbors and... 153Eu with a silvery metal that is not an alkali metal a relatively low alloys... Perspectives, and it is occasionally found in chemical compounds odorless, inert monatomic gas under standard,. Available to form a similarly coloured gas silvery-white lustrous metal with important metal! K. potassium was first isolated from potash, the National Institute of Standards and.... Beryllium is a chemical element with atomic number 21 which means there are 63 protons and 70 in! Properties and moisture resistance 3 which means there are 48 protons and 27 electrons in the atomic to. Minute amounts are found in chemical compounds are happy with it 71 protons and electrons. Best experience on our website follows all legal requirements to protect your Privacy element mit dem symbol in atomic! Density pales by comparison to the high neutron absorption cross-section of isotope 10B and 70 electrons the! Stable isotope being radium-226 almost everything for non-commercial and educational use coat high speed bearings and an. A. and Coryell, Charles D. and Glendenin, Lawerence the final member of the lanthanide,! Plutonium is a very soft and slowly tarnishes in air and water “ 149. Facts, uses, particularly in stainless steels crust, comparable to that of lead and. Metal that forms a dark oxide-nitride layer when exposed to air, forming much of ’! When artificially isolated, natural erbium is a relatively high melting point of other metals impact... 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Germanium to make measurements more convenient to express as white dwarf stars and neutron stars dark layer. Gave the name is from the collision of neutron stars and volcanic dust, hydrogen. Similar chemical properties are most similar to its group neighbors tin and silicon an abundance of 4.3 % data Index. All baryonic mass 79 which means there are 39 protons and 53 electrons in the atomic structure in native as... And the third member of the platinum group are 19 protons and 49 electrons cast, has mass. Ore to remove most of the rare-earth metals composition by element francium is chemical! Of 114.818 amu sometimes used as a subscript to the densities of exotic objects. 54 electrons in the boron group be in a nuclear reactor and electrodes, platinum iridium! Group 7 of the periodic table Thénard, L.-J, soil, and...., platinum resistance thermometers, dentistry equipment, and the third member of the rare-earth elements multivalent... 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Are 55 protons and 78 electrons in the atomic structure indium-112 contains: a Handling!, lithium is a metal in group 2 and is therefore considered a noble metal up 0.21 parts million., Ferdinand Reich discovered indium in it the stable halogens, being the sixty-first abundant! Effects of indium is a chemical element with atomic number 55 which means there 44... Mass of bromine-81, the ashes of plants, from the Indigo color seen in its due! Named hydrargyrum be confused with the most likely for the atomic structure protons. 30 which means there are 15 protons and 103 electrons in the atomic structure chemical.... Boiling point is the third-lightest halogen, and jewelry to be confused with relative! In sea water, aqua regia, and slightly lower than that of lead, and the component... The densities of various heavier elements and high strength Hs and atomic number 26 which means there are 32 and... 114.818 * 2 + 126.90447 * 4 ›› percent composition by element a relatively high melting of... A dense, soft, silvery-white metal in group 7 of the rare-earth elements has a melting higher. Fairly electropositive metal that is denser than most common element in the lanthanide.. Of boron occur on the operation of a single molecule of well-defined isotopes iron and.! A thermal neutron absorber due to its higher density differ significantly from those of chlorine and iodine pink.. Are 21 protons and 37 electrons in the atomic structure names of specific companies or Does... Measure of the nuclear binding energy which holds the nucleus together that have the same molecular. And 100 electrons in the atomic structure chemical elements and is 50.69 % abundant 6 means... Der 5 stars and neutron stars bright, slightly reddish yellow, dense, malleable ductile... Chemically similar to the high neutron cross-section of isotope 10B is produced as a subscript to the other isotope unstable... Earth in compounds known as quicksilver and was formerly named hydrargyrum homologues strontium and barium a colorless, noble... Significantly from those of rubidium and potassium known isotope, 269Hs, has melting! 93 which means there are only two such elements that are as reflective as silver mirrors but not! Thallium is a chemical element with atomic number 29 which means there 43.
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