Chemical element

Articles

iron
27 May 2009
Fe
zinc
2 October 2008

Definition: Zinc is a metallic chemical element with the symbol Zn and atomic number 30. It is a first-row transition metal in group 12 of the periodic table.
Zinc is chemically similar to magnesium because its ion is of similar size and its only common oxidation state is +2.
Zinc is the 24th most abundant element in the Earth’s crust and has five stable isotopes.
Biological role
Zinc is an essential trace element, necessary for plants, animals, and microorganisms. Zinc is found in (...)
copper
27 May 2009
Cu