30
Zinc
Atomic Number30
Atomic Mass65.38 u
CategoryTransition Metal
State at Room TempSolid
Year Discovered1746
About Zinc
Essential for immune function and over 100 enzyme reactions. Galvanized steel is coated with zinc to prevent rusting. Used in batteries, brass alloys, and sunscreen as zinc oxide. The common cold remedy zinc lozenges may reduce cold duration by one day. Zinc deficiency affects about 2 billion people worldwide, causing growth retardation and immune dysfunction.
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