Zinc

Zinc, ₃₀Zn

Zinc
Ìhànsójú	silvery gray
Ìwúwo átọ̀mù Ar, std(Zn)	65.38(2)
Zinc ní orí tábìlì àyè
Hydrogen Helium Lithium Beryllium Boron Carbon Nitrogen Oxygen Fluorine Neon Sodium Magnesium Aluminium Silicon Phosphorus Sulfur Chlorine Argon Potassium Calcium Scandium Titanium Vanadium Chromium Manganese Iron Cobalt Nickel Copper Zinc Gallium Germanium Arsenic Selenium Bromine Krypton Rubidium Strontium Yttrium Zirconium Niobium Molybdenum Technetium Ruthenium Rhodium Palladium Silver Cadmium Indium Tin Antimony Tellurium Iodine Xenon Caesium Barium Lanthanum Cerium Praseodymium Neodymium Promethium Samarium Europium Gadolinium Terbium Dysprosium Holmium Erbium Thulium Ytterbium Lutetium Hafnium Tantalum Tungsten Rhenium Osmium Iridium Platinum Gold Mercury (element) Thallium Lead Bismuth Polonium Astatine Radon Francium Radium Actinium Thorium Protactinium Uranium Neptunium Plutonium Americium Curium Berkelium Californium Einsteinium Fermium Mendelevium Nobelium Lawrencium Rutherfordium Dubnium Seaborgium Bohrium Hassium Meitnerium Darmstadtium Roentgenium Copernicium Nihonium Flerovium Moscovium Livermorium Tennessine Oganesson - ↑ Zn ↓ Cd copper ← zinc → gallium
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
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 70Zn 0.6% 70Zn is stable with 40 neutrons 72Zn syn 46.5 h β− 0.458 72Ga