Antimony

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Antimony
Sb
In situ availability:
Necessity:
Atomic number: 51
Atomic mass: 121.76
group: 15
period: 5
normal phase: Solid
series: Metalloids
density: 6.697 g/cm3
melting point: 903.78K,
630.63°C,
1167.13°F
boiling point: 1860K,
1587°C,
2889°F
Ge ← As → Se
Sn ← Sb → Te
Pb ← Bi → Po
Atomic radius (pm): 145
Bohr radius (pm): 133
Covalent radius (pm): 138
Van der Waals radius (pm):
ionic radius (pm): (+3) 76
1st ion potential (eV): 8.64
Electron Configuration
1s2
2s2 2p6
3s2 3p6 3d10
4s2 4p6 4d10
5s2 5p3
Electrons Per Shell
2, 8, 18, 18, 5
Electronegativity: 2.05
Electron Affinity: 1.07
Oxidation states: +/-3, 5
Magnetism: ?
Crystal structure: Rhombohedral

Antimony is a Metalloid in group 15. It has a Rhombohedral crystalline structure. This element has two stable isotopes: 121 and 123.




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