Get the Facts About the Element Antimony

Get the Facts About the Element Antimony Antimony (nuclear number 51)â compounds have been known since old time. The metal has been known since in any event the seventeenth century. Electron Configuration: [Kr] 5s2 4d10 5p3 Word Origin Greek enemy of in addition to monos, which means a metal not discovered alone. The image originates from the mineral stibnite. Properties The liquefying purpose of antimony is 630.74Â °C, the breaking point is 1950Â °C, explicit gravity is 6.691 (at 20Â °C), with a valence of 0, - 3, 3, or 5. Two allotropic types of antimony exist; the typical stable metallic structure and the shapeless dark structure. Metallic antimony is very fragile. It is a pale blue white metal with a flaky crystalline surface and metallic gloss. It isn't oxidized via air at room temperature. Be that as it may, it will consume splendidly when warmed, and discharge white Sb2O3 exhaust. It is a poor warmth or electrical conveyor. Antimony metal has a hardness of 3 to 3.5. Employments Antimony is generally utilized in alloying to expand hardness and mechanical quality. Antimony is utilized in the semiconductor business for infrared indicators, Hall-impact gadgets, and diodes. The metal and its mixes additionally utilized in batteries, projectiles, link sheathing, fire sealing mixes, glass, earthenware production, paints, and stoneware. Tartar emetic has been utilized in medication. Antimony and a large number of its mixes are poisonous. Sources Antimony is found in more than 100 minerals. Here and there it happens in local structure, yet it is progressively normal as the sulfide stibnite (Sb2S3) and as the antimonides of overwhelming metals and as oxides. Component Classification and Properties SemimetallicDensity (g/cc): 6.691Melting Point (K): 903.9Boiling Point (K): 1908Appearance: hard, brilliant white, fragile semi-metalAtomic Radius (pm): 159Atomic Volume (cc/mol): 18.4Covalent Radius (pm): 140Ionic Radius: 62 (6e) 245 (- 3)Specific Heat (20Â °C J/g mol): 0.205Fusion Heat (kJ/mol): 20.08Evaporation Heat (kJ/mol): 195.2Debye Temperature (K): 200.00Pauling Negativity Number: 2.05First Ionizing Energy (kJ/mol): 833.3Oxidation States: 5, 3, - 2Lattice Structure: RhombohedralLattice Constant (Ã… ): 4.510 Image Sb Nuclear Weight 121.760 References Los Alamos National Laboratory (2001)Crescent Chemical Company (2001)Langes Handbook of Chemistry (1952)CRC Handbook of Chemistry Physics (eighteenth Ed.)