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AntimonySb Electron 1 Electron 2 Electron 1 Electron 2 Electron 3 Electron 4 Electron 5 Electron 6 Electron 7 Electron 8 Electron 1 Electron 2 Electron 3 Electron 4 Electron 5 Electron 6 Electron 7 Electron 8 Electron 9 Electron 10 Electron 11 Electron 12 Electron 13 Electron 14 Electron 15 Electron 16 Electron 17 Electron 18 Electron 1 Electron 2 Electron 3 Electron 4 Electron 5 Electron 6 Electron 7 Electron 8 Electron 9 Electron 10 Electron 11 Electron 12 Electron 13 Electron 14 Electron 15 Electron 16 Electron 17 Electron 18 Electron 1 Electron 2 Electron 3 Electron 4 Electron 5

Antimony is a chemical element with symbol Sb (from Latin:stibium) and atomic number 51. A lustrous gray metalloid, it is found in nature mainly as the sulfide mineral stibnite (Sb2S3). Antimony compounds have been known since ancient times and were used for cosmetics; metallic antimony was also known, but it was erroneously identified as lead upon its discovery.

51 Atomic Number
121.76 Atomic Mass (u)
904.05 Melting Point (K)
1860 Boiling Point (K)
6.7 Density (solid: g/cm³, gas: g/liter)
1.5 Atomic Radius (Å)
1.39 Covalent Radius (Å)
2.05 Electronegativity
8.61 First Ionization Energy (eV)
101.06 Electron Affinity
5 Number of Shells
5 Electron Valency
2, 8, 18, 18, 5 Electron Shell Occupations
0.21 Specific Heat (J/g)