Strontium was discovered by an Irish chemist, Adair Crawford, in 1790. It was discovered in 1790 by the Scottish chemist William Cruickshank and the … But it was not until 1808, that Strontium was first isolated by Sir Humphry Davy, an English chemist. Uses of Strontium Although strontium is not considered as an essential element and does not have any known biological role, it is present in all living organisms. Periodic Table--Strontium. Strontium belongs to the group 2 elements of the periodic table, along with Be, Mg, Ca and Ba. Strontium was named after the village of Strontian in Scotland. Element 38 of Periodic table is Strontium with atomic number 38, atomic weight 87.62. Strontium. Trivial name of Strontium is alkaline earth metals*. 549.5, 1064.2, 4138, 5500, 6910, 8760, 10230, 11800, 15600, 17100 kJ/mol Strontium is a alkaline earth metal element. Its chemical and physical properties are similar to that of elements such as barium and calcium. Only 87 Sr is radiogenic; it is produced by decay from the radioactive alkali metal 87 Rb, which has a half-life of 48,800,000 years. 38: Strontium - Strontium [Sr] Group: 2 Period: 5 Atomic number: 38 Atomic mass: 87.62 Configuration: [Kr] 5s 2 Atomic radius: 219 pm Covalent radius: 195 pm Electron affinity: 5.03 eV Ionization energy: 5.6949 eV Electronic term: 1 S 0 Mass fraction in the earth crust: 0.00036 Mass fraction in the earth space: 0.00000004 Electronegativity: 0.95 Strontium is found chiefly as celestite and strontianite. Strontium (atomic number 38, symbol Sr) is an alkaline earth metal that is commercially available. Strontium, symbol Sr, has a Face Centered Cubic structure and Silver color. The alkali earth metal strontium has four stable, naturally occurring isotopes: 84 Sr (0.56%), 86 Sr (9.86%), 81 Sr (7.0%) and 88 Sr (82.58%). The metal can be prepared by electrolysis of the fused chloride mixed with potassium chloride, or is made by reducing strontium oxide with aluminum in a vacuum at a temperature at which strontium distills off.

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