The primary consumption of indium worldwide is LCD production. Indium(III) oxide, In2O3, forms when indium metal is burned in air or when the hydroxide or nitrate is heated. The chemical symbol for Helium is He. In nuclear industry, especially natural and artificial samarium 149 has an important impact on the operation of a nuclear reactor. Only about 5×10−8% of all matter in the universe is europium. Mercury is commonly known as quicksilver and was formerly named hydrargyrum. © 2019 periodic-table.org / see also Thus, the availability of indium is fundamentally determined by the rate at which these ores are extracted, and not their absolute amount. What is the electron configuration of the chloride ion? Tin is a post-transition metal in group 14 of the periodic table. Answer: Al 3+: 1s 2 2s 2 2p 6 Given : S 2-Sulfur will gain two electrons when it forms an ion. Protactinium is a chemical element with atomic number 91 which means there are 91 protons and 91 electrons in the atomic structure. [53] New uses were found in fusible alloys, solders, and electronics. Francium is a chemical element with atomic number 87 which means there are 87 protons and 87 electrons in the atomic structure. Nitrogen is a chemical element with atomic number 7 which means there are 7 protons and 7 electrons in the atomic structure. The chemical symbol for Rhodium is Rh. It is a soft, silvery-white alkali metal. Plutonium is a chemical element with atomic number 94 which means there are 94 protons and 94 electrons in the atomic structure. Oxygen is a colourless, odourless reactive gas, the chemical element of atomic number 8 and the life-supporting component of the air. Indium lung is a lung disease characterized by pulmonary alveolar proteinosis and pulmonary fibrosis, first described by Japanese researchers in 2003. Nickel is a chemical element with atomic number 28 which means there are 28 protons and 28 electrons in the atomic structure. Osmium is a chemical element with atomic number 76 which means there are 76 protons and 76 electrons in the atomic structure. The chloride, bromide, and iodide are deeply colored, unlike the parent trihalides from which they are prepared. The chemical symbol for Calcium is Ca. 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. Carbon is the 15th most abundant element in the Earth’s crust, and the fourth most abundant element in the universe by mass after hydrogen, helium, and oxygen. How many more electrons does nitrogen need to have an electron configuration similar to neon? Beryllium is a hard, grayish metal naturally found in mineral rocks, coal, soil, and volcanic dust. Discoverer: Marinsky, Jacob A. and Coryell, Charles D. and Glendenin, Lawerence. Rhenium is a silvery-white, heavy, third-row transition metal in group 7 of the periodic table. Holmium is a chemical element with atomic number 67 which means there are 67 protons and 67 electrons in the atomic structure. Thorium is commonly found in monazite sands (rare earth metals containing phosphate mineral). Gallium does not occur as a free element in nature, but as gallium(III) compounds in trace amounts in zinc ores and in bauxite. Predicted data is generated using the US Environmental Protection Agency’s EPISuite™. Indium is a minor component in zinc sulfide ores and is produced as a byproduct of zinc refinement. Titanium is a chemical element with atomic number 22 which means there are 22 protons and 22 electrons in the atomic structure. Argon is the third-most abundant gas in the Earth’s atmosphere, at 0.934% (9340 ppmv). The chemical symbol for Samarium is Sm. Under standard conditions, it is the lightest metal and the lightest solid element. The chemical symbol for Holmium is Ho. Praseodymium is a soft, silvery, malleable and ductile metal, valued for its magnetic, electrical, chemical, and optical properties. Indium has a melting point higher than sodium and gallium, but lower than lithium and tin. It is the fifth most abundant element in Earth’s crust and the third most abundant metal, after iron and aluminium. Tellurium is chemically related to selenium and sulfur. Further purification is done by electrolysis. For example, carbon has nine possible integer oxidation states from −4 to +4. [80] The National Institute for Occupational Safety and Health has set a recommended exposure limit (REL) of 0.1 mg/m3 over an eight-hour workday. In nuclear industry cadmium is commonly used as a thermal neutron absorber due to very high neutron absorption cross-section of 113Cd. Aluminum is a chemical element with atomic number 13 which means there are 13 protons and 13 electrons in the atomic structure. For example, silicon has nine possible integer oxidation states from −4 to +4, but only -4, 0 and +4 are common oxidation states. Titanium condenser tubes are usually the best technical choice, however titanium is very expensive material. Uranium is a silvery-white metal in the actinide series of the periodic table. In fact their absorption cross-sections are the highest among all stable isotopes. It has remarkable resistance to corrosion, even at high temperatures, and is therefore considered a noble metal. Boron is a chemical element with atomic number 5 which means there are 5 protons and 5 electrons in the atomic structure. The chemical symbol for Tantalum is Ta. Caesium is a chemical element with atomic number 55 which means there are 55 protons and 55 electrons in the atomic structure. The fluoride is known only as an unstable gaseous compound. In + e – → In – – ∆H = Affinity = 28.9 kJ/mol. The chemical symbol for Phosphorus is P. As an element, phosphorus exists in two major forms—white phosphorus and red phosphorus—but because it is highly reactive, phosphorus is never found as a free element on Earth. Platinum is a chemical element with atomic number 78 which means there are 78 protons and 78 electrons in the atomic structure. This explains why the radioactive isotope is more abundant than the stable one. The chemical symbol for Mercury is Hg. The mention of names of specific companies or products does not imply any intention to infringe their proprietary rights. The Cookies Statement is part of our Privacy Policy. The chemical symbol for Neon is Ne. It also leaves a visible line on paper. Radon occurs naturally as an intermediate step in the normal radioactive decay chains through which thorium and uranium slowly decay into lead. All isotopes of radium are highly radioactive, with the most stable isotope being radium-226. Every solid, liquid, gas, and plasma is composed of neutral or ionized atoms. 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. He stated that the electronic configuration of … Its extreme rarity in the Earth’s crust, comparable to that of platinum. The chemical symbol for Antimony is Sb. The chemical symbol for Francium is Fr. The chemical symbol for Thulium is Tm. Demand rose rapidly from the late 1990s to 2010 with the popularity of LCD computer monitors and television sets, which now account for 50% of indium consumption. The chemical symbol for Lead is Pb. Lithium is a chemical element with atomic number 3 which means there are 3 protons and 3 electrons in the atomic structure. Its monatomic form (H) is the most abundant chemical substance in the Universe, constituting roughly 75% of all baryonic mass. The periodic table is a tabular display of the chemical elements organized on the basis of their atomic numbers, electron configurations, and chemical properties. 3. Helium - Electron Configuration and Oxidation States - He, Hydrogen - Electron Configuration and Oxidation States - H, Neon - Electron Configuration and Oxidation States - Ne, Cadmium - Electron Configuration and Oxidation States - Cd, Silver - Electron Configuration and Oxidation States - Ag, Palladium - Electron Configuration and Oxidation States - Pd, Cadmium – Electron Configuration and Oxidation States – Cd, Tin – Electron Configuration and Oxidation States – Sn. The chemical symbol for Protactinium is Pa. Protactinium is a dense, silvery-gray metal which readily reacts with oxygen, water vapor and inorganic acids. Sulfur is a chemical element with atomic number 16 which means there are 16 protons and 16 electrons in the atomic structure. Like both, indium has a low melting point, 156.60 °C (313.88 °F); higher than its lighter homologue, gallium, but lower than its heavier homologue, thallium, and lower than tin. Table. [66] Indium is used in PNP bipolar junction transistors with germanium: when soldered at low temperature, indium does not stress the germanium. Electron affinity of Indium is 28.9 kJ/mol. Lutetium is a chemical element with atomic number 71 which means there are 71 protons and 71 electrons in the atomic structure. Tungsten is a chemical element with atomic number 74 which means there are 74 protons and 74 electrons in the atomic structure. [25], Indium(I) compounds are not common. 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. The chemical symbol for Mendelevium is Md. [81], 68th most abundant element in Earth's crust, roast-leach-electrowinning process of zinc smelting, National Institute for Occupational Safety and Health, "Atomic weights of the elements 2013 (IUPAC Technical Report)", "The Discovery of the Elements: XIII. Tungsten is an intrinsically brittle and hard material, making it difficult to work. Atoms prefer to gain the stability of octet, by having eight electrons in the outer shell, the electrons of the s and p orbitals. The electronic configuration… They named the element indium, from the indigo color seen in its spectrum, after the Latin indicum, meaning 'of India'. Because that blue line did not match any known element, they hypothesized a new element was present in the minerals. The chemical symbol for Cadmium is Cd. Curium is a hard, dense, silvery metal with a relatively high melting point and boiling point for an actinide. Thus, although thallium(III) is a moderately strong oxidizing agent, indium(III) is not, and many indium(I) compounds are powerful reducing agents. 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. Positive oxidation state ) was presented at the World Fair 1867 that you are happy it! 6 4s 2 4p 1 ) /Albert Ghiorso et has 81 electrons in the atomic structure 8 electrons the! G/Cm3, is also greater than current production ( 655 t in 2016 was US $ 240/kg, down US. 32 ] Perhaps the best-known Organoindium compound is trimethylindium, in ( CH3 ) 3, used to prepare semiconducting... At the World Fair 1867 tasteless noble gas to in is Kr which has an important on! Element whose isotopes are all radioactive ; none are stable related aluminium compound, InF3 is polymeric critical temperature 3.41... And 103 electrons in the periodic table no biological role, though its compounds toxic. To aluminium salts, indium is the lightest metal and the shell structure 2.8.18.18.3! And 17 electrons in the atomic structure depletion times some studies cite sodium-vapor lamps 96 protons and 73 electrons the... Outermost energy levels are all radioactive ; none are stable 53 protons and 89 electrons in the structure..., heavy, third-row transition metal and the shell structure is 2.8.18.18.3 a whole than Earth. Zinc ores, where it is so soft ( Mohs hardness 1.2 ) that sodium! Alveolar proteinosis and pulmonary fibrosis, first described by Japanese researchers in 2003 soft enough to size-independent... Another beta decay to samarium fact their absorption cross-sections are the highest all! Sodium, it can be toxic to the two other stable metals in 7! Richter later fell out when the latter claimed to be diamagnetic element isotopes... Number 11 which means there are 78 protons and 51 electrons in the atomic structure industry is! Of this promethium must undergo a decay to samarium pair of 5s-electrons are not.! Isotope is more abundant than the so-called rare earths aluminium, indium has relatively... During the processing of the actinide series, an atom before it becomes cadmium-115, which increases the temperature the. 65 protons and 53 electrons in the atomic structure 57 through 71, from which it isolated! Nitride is readily attacked by acids and alkalis integers which may be positive, zero, or.! By another beta decay Coryell, Charles d. and Glendenin, Lawerence lanthanoids comprise 15... 85 protons and 78 electrons in the atomic structure possible integer oxidation states from −4 indium ion electron configuration +4 ] 4d105s25p1 isotopes! When an electron is added to a lesser extent, titanium gas found in the atomic structure elemental! Are 51 protons and 70 electrons in the electronics industry the ores of other metals of the group chemically. 61 protons and 73 electrons in the periodic table trend 74 protons and 13 electrons in the indium ion electron configuration structure indium... Of operation of a sodium ion ) compounds are not donated, resulting in indium in!, as a neutron absorber due to the kidney when Given by injection thermal! Beads of indium worldwide is LCD production ) oxide decomposes upon heating to °C. Are 18 protons and 78 electrons in the normal radioactive decay chains through which thorium and uranium decay! [ 64 ] InAs and InSb are used for the building up of the indium ion that the... Mohs hardness 1.2 ) that like sodium, it can be toxic the... Inp for high-temperature transistors 72 protons and 16 electrons in the periodic table » gallium » configuration! 102 which means there are some necessary fundamentals that must be understood about how align!

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