The 51st element is called Antimony. Its name comes from the Greek words anti and monos which mean "not alone" and its symbol Sb from its Latin name Stibium.
Metallic Antimony is an extremely brittle metal of a flaky, crystalline texture. It is bluish white and has a metallic lustre.
Antimony is sometimes found as a free element but more often as its sulphur compound Antimony Sulphide.
Antimony and many of its compounds are toxic so this limits its uses though it has in the past been used as coins. It isn't very suitable for use in coins as it wears away relatively easily.
Antimony is used in the electronics industry, in alloys with other metals and in batteries.
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