Template:Infobox zinc

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30 copper ← zinc → gallium - ↑ Zn ↓ Cd Periodic table - Extended periodic table
General
Name, symbol, number	zinc, Zn, 30
Chemical series	transition metals
Group, period, block	12, 4, d
Appearance	bluish pale gray
Standard atomic weight	65.409(4) g·mol−1
Electron configuration	[Ar] 3d10 4s2
Electrons per shell	2, 8, 18, 2
Physical properties
Phase	solid
Density (near r.t.)	7.14 g·cm−3
Liquid density at m.p.	6.57 g·cm−3
Melting point	692.68 K (419.53 °C, 787.15 °F)
Boiling point	1180 K (907 °C, 1665 °F)
Heat of fusion	7.32 kJ·mol−1
Heat of vaporization	123.6 kJ·mol−1
Specific heat capacity	(25 °C) 0.39 J·mol−1·K−1
Vapor pressure P/Pa 1 10 100 1 k 10 k 100 k at T/K 610 670 750 852 990 (1185)
Atomic properties
Crystal structure	hexagonal
Oxidation states	+1(rare) +2 (amphoteric oxide)
Electronegativity	1.65 (Pauling scale)
Ionization energies (more)	1st: 906.4 kJ·mol−1
	2nd: 1733.3 kJ·mol−1
	3rd: 3833 kJ·mol−1
Atomic radius	135 pm
Atomic radius (calc.)	142 pm
Covalent radius	131 pm
Van der Waals radius	139 pm
Miscellaneous
Magnetic ordering	diamagnetic
Electrical resistivity	(20 °C) 59.0 nΩ·m
Thermal conductivity	(300 K) 116 W·m−1·K−1
Thermal expansion	(25 °C) 30.2 µm·m−1·K−1
Speed of sound (thin rod)	(r.t.) (rolled) 3850 m·s−1
Young's modulus	108 GPa
Shear modulus	43 GPa
Bulk modulus	70 GPa
Poisson ratio	0.25
Mohs hardness	2.5
Brinell hardness	412 MPa
CAS registry number	7440-66-6
Selected isotopes
Main article: Isotopes of zinc iso NA half-life DM DE (MeV) DP 64Zn 48.6% 64Zn is stable with 34 neutrons 65Zn syn 244.26 d ε - 65Cu γ 1.1155 - 66Zn 27.9% 66Zn is stable with 36 neutrons 67Zn 4.1% 67Zn is stable with 37 neutrons 68Zn 18.8% 68Zn is stable with 38 neutrons 69Zn syn 56.4 min β− 0.906 69Ga 70Zn 0.6% 70Zn is stable with 40 neutrons
References
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