Antimony

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Antimony
121.760(1)



  Sb
51
1s22s22p63s23p63d104s2 4p64d105s25p3
[ ? ] Metalloid:
Properties:
Silvery-gray, lustrous metalloid
Hazard:
Toxic


Antimony is a chemical element, having the chemical symbol Sn. Its atomic number (the number of protons) is 51. It has a standard atomic weight of 121.76 g•mol −1 and is a solid in its elemental form.

Antimony is considered to be a member of the "Metalloid" class of elements. At a pressure of 101.325 kPa, it has a boiling point of 1,587 °C and a melting point of 630.63 °C.