Zinc is a chemical element with the symbol Zn and atomic number 30. Zinc is a slightly brittle metal at room temperature and has a blue-silvery appearance when oxidation is removed. It is the first element in group 12 of the periodic table.
Symbol: Zn
Electron configuration: [Ar] 3d¹⁰4s²
Atomic mass: 65.38 u
Atomic number: 30
Melting point: 419.5 °C
Van der Waals radius: 139 pm
ref: Wikipedia.
Age 50+
Adult
Women
Adults+
50+










