Electron Configuration: 1s2, 2s2, 2p6, 3s2, 3p6, 4s2, 3d10, 4p6, 5s2, 4d10, 5p3
Atomic/Ionic Radius: 140pm/62 (+6e) 245 (-3)
Ionization Energy: 834, 1594.9 2440, 4260, 5400, 10400
Ion charge: -3, 3, 5
Common Forms: Sb 3+, SbO +
History: Unknown of discovery but it has been used for over 4,000/5,000 years. Egyptians would use it as black eyeliner. The element was probably first named by Roman scholar Pliny ( A.D. 23-79), who called it stibium. Muslim alchemist Abu Musa Jabir Ibn Hayyan (c. 721-c. 815) probably first called it antimony— anti ("not") and monos ("alone"). The name comes from the fact that antimony does not occur alone in nature.