What is zinc?
Zinc or zinc is a metallic chemical element , present in the periodic table in group 12, part of the transition metals .
Its atomic number is 30 and its symbol Zn, from its original German name: Zink , from Zinken ("teeth", "spikes"), alluding to the sharp appearance of the mineral calamine, in which this element is abundant .
Zinc is a common element , of biological importance and of numerous industrial applications, especially as part of metallic alloys.
It is a highly reactive metal with four metastable states , and radioactive isotopes with a half-life of less than 14 hours (except for a couple).
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