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Zinc (Zn)

Zinc (Zn) is element 30 of the periodic table, a transition metal in period 4 and group 12. Its standard atomic weight is 65.38, so one mole of zinc atoms has a mass of 65.38 g. At room temperature it is a solid; it melts at 419.53 °C and boils at 906.85 °C.

30 Zn Zinc 65.38

Period 4, group 12 · Transition metal

← Cu Copper Ga Gallium →

Atomic number	30
Symbol	Zn
Standard atomic weight	65.38
Molar mass	65.38 g/mol
Category	Transition metal
Group	12
Period	4
Block	d-block
Electron configuration	[Ar] 4s² 3d¹⁰
Oxidation states	+2
Electronegativity (Pauling)	1.65
Atomic radius (van der Waals)	139 pm
First ionisation energy	9.394 eV (906.4 kJ/mol)
Electron affinity	—
State at room temperature	Solid
Melting point	692.68 K (419.53 °C)
Boiling point	1180 K (906.85 °C)
Density	7.134 g/cm³
Discovered	1746

Group 12

Cd · Cadmium Hg · Mercury Cn · Copernicium

Calculate with Zinc

Molar mass of Zn Balance an equation Grams, moles and particles Whole periodic table

Atomic weight: IUPAC CIAAW standard atomic weight. Other properties: PubChem (U.S. National Library of Medicine, public domain). Values such as melting point and radius depend on how they were measured; check a data book for precise work.