Zinc

Zinc, ₃₀Zn

Zinc
Ìhànsójú	silvery gray
Ìwúwo átọ̀mù Ar, std(Zn)	65.38(2)[1]
Zinc ní orí tábìlì àyè
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Nọ́mbà átọ̀mù (Z)	30
Ẹgbẹ́	group 12
Àyè	àyè 4
Àdìpọ̀	Àdìpọ̀-d
Ẹ̀ka ẹ́límẹ́ntì	Post-transition metal
Ìtò ẹ̀lẹ́ktrọ́nù	[Ar] 3d10 4s2
Iye ẹ̀lẹ́ktrọ́nù lórí ìpele kọ̀ọ̀kan	2, 8, 18, 2
Àwọn ohun ìní ara
Ìfarahàn at STP	solid
Ìgbà ìyọ́	692.68 K ​(419.53 °C, ​787.15 °F)
Ígbà ìhó	1180 K ​(907 °C, ​1665 °F)
Kíki (near r.t.)	7.14 g/cm3
when liquid (at m.p.)	6.57 g/cm3
Heat of fusion	7.32 kJ/mol
Heat of	123.6 kJ/mol
Molar heat capacity	25.470 J/(mol·K)
pressure P (Pa) 1 10 100 1 k 10 k 100 k at T (K) 610 670 750 852 990 1179
Atomic properties
Oxidation states	−2, 0, +1, +2 Àdàkọ:Infobox element/symbol-to-oxidation-state/comment
Electronegativity	Pauling scale: 1.65
energies	(more)
Atomic radius	empirical: 134 pm
Covalent radius	122±4 pm
Van der Waals radius	139 pm
Color lines in a spectral range Spectral lines of zinc
Other properties
Natural occurrence	primordial
Crystal structure	​hexagonal
Speed of sound thin rod	(rolled) 3850 m/s (at r.t.)
Thermal expansion	30.2 µm/(m·K) (at 25 °C)
Thermal conductivity	116 W/(m·K)
Electrical resistivity	59.0 n Ω·m (at 20 °C)
Magnetic ordering	diamagnetic
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 Number	7440-66-6
Main isotopes of zinc
Iso­tope Abun­dance Half-life (t1/2) Decay mode Pro­duct 64Zn 48.6% 64Zn is stable with 34 neutrons 65Zn syn 243.8 d ε 1.3519 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 Àdàkọ:Elementbox isotopes decay2 2hl 70Zn 0.6% 70Zn is stable with 40 neutrons Àdàkọ:Elementbox isotopes decay2 2hl 72Zn syn 46.5 h β− 0.458 72Ga
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