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Antimony (Sb)
Atomic number: 51 · Category: metalloid · Group 15 · Period 5 · Phase: Solid
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.
Atomic mass: 121.7601
Density: 6.697
Melting point: 903.78 K
Boiling point: 1908 K
Appearance: silvery lustrous gray
Source: Wikipedia
Block: p
Molar heat: 25.23
CPK color:#9e63b5
Electronic structure
Electron configuration: 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p3
Configuration (semantic): [Kr] 4d10 5s2 5p3
Shells: 2, 8, 18, 18, 5
Electronegativity (Pauling): 2.05
Electron affinity: 101.059
Ionization energies: 834, 1594.9, 2440, 4260, 5400, 10400
Periodic position
Group: 15
Period: 5
xpos: 15
ypos: 5
Spectral/Bohr images
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