Antimony

51
Sb
121.760 (1)

A brick or bar casting of antimony has a dull silverish color
Example of Antimony metal.

Properties

Symbol Name Atomic Number Atomic Weight Group Number
Sb Antimony 51 121.760(1) 15

Description

Standard State: solid at 298 K
Color: silvery lustrous gray

Antimony was probably used much earlier than the 17th century and was known as a metal.

Antimony greatly increases the hardness and strength of lead.  Antimony is also used in the production of tracer bullets, small arms, and batteries.  Exposure to Antimony should be limited because Antimony is toxic.