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Zinc,  30Zn
Zinc fragment sublimed and 1cm3 cube.jpg
General properties
Name, seembol zinc, Zn
Appearance siller-gray
Pronunciation /ˈzɪŋk/ ZINGK
Zinc in the periodic cairt
Hydrogen (diatomic nonmetal)
Helium (noble gas)
Lithium (alkali metal)
Beryllium (alkaline yird metal)
Boron (metalloid)
Carbon (polyatomic nonmetal)
Nitrogen (diatomic nonmetal)
Oxygen (diatomic nonmetal)
Fluorine (diatomic nonmetal)
Neon (noble gas)
Sodium (alkali metal)
Magnesium (alkaline yird metal)
Aluminium (post-transeetion metal)
Silicon (metalloid)
Phosphorus (polyatomic nonmetal)
Sulfur (polyatomic nonmetal)
Chlorine (diatomic nonmetal)
Argon (noble gas)
Potassium (alkali metal)
Calcium (alkaline yird metal)
Scandium (transeetion metal)
Titanium (transeetion metal)
Vanadium (transeetion metal)
Chromium (transeetion metal)
Manganese (transeetion metal)
Iron (transeetion metal)
Cobalt (transeetion metal)
Nickel (transeetion metal)
Copper (transeetion metal)
Zinc (transeetion metal)
Gallium (post-transeetion metal)
Germanium (metalloid)
Arsenic (metalloid)
Selenium (polyatomic nonmetal)
Bromine (diatomic nonmetal)
Krypton (noble gas)
Rubidium (alkali metal)
Strontium (alkaline yird metal)
Yttrium (transeetion metal)
Zirconium (transeetion metal)
Niobium (transeetion metal)
Molybdenum (transeetion metal)
Technetium (transeetion metal)
Ruthenium (transeetion metal)
Rhodium (transeetion metal)
Palladium (transeetion metal)
Silver (transeetion metal)
Cadmium (transeetion metal)
Indium (post-transeetion metal)
Tin (post-transeetion metal)
Antimony (metalloid)
Tellurium (metalloid)
Iodine (diatomic nonmetal)
Xenon (noble gas)
Caesium (alkali metal)
Barium (alkaline yird metal)
Lanthanum (lanthanide)
Cerium (lanthanide)
Praseodymium (lanthanide)
Neodymium (lanthanide)
Promethium (lanthanide)
Samarium (lanthanide)
Europium (lanthanide)
Gadolinium (lanthanide)
Terbium (lanthanide)
Dysprosium (lanthanide)
Holmium (lanthanide)
Erbium (lanthanide)
Thulium (lanthanide)
Ytterbium (lanthanide)
Lutetium (lanthanide)
Hafnium (transeetion metal)
Tantalum (transeetion metal)
Tungsten (transeetion metal)
Rhenium (transeetion metal)
Osmium (transeetion metal)
Iridium (transeetion metal)
Platinum (transeetion metal)
Gold (transeetion metal)
Mercury (transeetion metal)
Thallium (post-transeetion metal)
Lead (post-transeetion metal)
Bismuth (post-transeetion metal)
Polonium (post-transeetion metal)
Astatine (metalloid)
Radon (noble gas)
Francium (alkali metal)
Radium (alkaline yird metal)
Actinium (actinide)
Thorium (actinide)
Protactinium (actinide)
Uranium (actinide)
Neptunium (actinide)
Plutonium (actinide)
Americium (actinide)
Curium (actinide)
Berkelium (actinide)
Californium (actinide)
Einsteinium (actinide)
Fermium (actinide)
Mendelevium (actinide)
Nobelium (actinide)
Lawrencium (actinide)
Rutherfordium (transeetion metal)
Dubnium (transeetion metal)
Seaborgium (transeetion metal)
Bohrium (transeetion metal)
Hassium (transeetion metal)
Meitnerium (unkent chemical properties)
Darmstadtium (unkent chemical properties)
Roentgenium (unkent chemical properties)
Copernicium (transeetion metal)
Ununtrium (unkent chemical properties)
Flerovium (post-transeetion metal)
Ununpentium (unkent chemical properties)
Livermorium (unkent chemical properties)
Ununseptium (unkent chemical properties)
Ununoctium (unkent chemical properties)


Atomic nummer (Z) 30
Group, block group 12, d-block
Period period 4
Element category   transeetion metal, alternatively considered a post-transeetion metal
Staundart atomic wicht (Ar) 65.38(2)
Electron configuration [Ar] 3d10 4s2
per shell
2, 8, 18, 2
Pheesical properties
Phase solid
Meltin pynt 692.68 K ​(419.53 °C, ​787.15 °F)
Boilin pynt 1180 K ​(907 °C, ​1665 °F)
Density near r.t. 7.14 g/cm3
when liquid, at m.p. 6.57 g/cm3
Heat of fusion 7.32 kJ/mol
Heat o 123.6 kJ/mol
Molar heat capacity 25.470 J/(mol·K)
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, +1, 0amphoteric oxide
Electronegativity Pauling scale: 1.65
Atomic radius empirical: 134 pm
Covalent radius 122±4 pm
Van der Waals radius 139 pm
Crystal structur hexagonal close-packed (hcp)
Hexagonal close packed crystal structur for zinc
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 orderin diamagnetic
Young's modulus 108 GPa
Shear modulus 43 GPa
Bulk modulus 70 GPa
Poisson ratio 0.25
Mohs haurdness 2.5
Brinell haurdness 412 MPa
CAS Nummer 7440-66-6
Discovery Indian metallurgists (before 1000 BC)
First isolation Andreas Sigismund Marggraf (1746)
Recognized as a unique metal bi Rasaratna Samuccaya (800)
Most stable isotopes of zinc
iso NA hauf-life DM DE (MeV) DP
64Zn 48.6% >2.3×1018 y (β+β+) 1.096 64Ni
65Zn syn 243.8 d ε 1.3519 65Cu
γ 1.1155 -
66Zn 27.9% 66Zn is stable wi 36 neutrons
67Zn 4.1% 67Zn is stable wi 37 neutrons
68Zn 18.8% 68Zn is stable wi 38 neutrons
69Zn syn 56 min β 0.906 69Ga
69mZn syn 13.76 h β 0.906 69Ga
70Zn 0.6% >1.3×1016 y (ββ) 0.998 70Ge
71Zn syn 2.4 min β 2.82 71Ga
71mZn syn 3.97 d β 2.82 71Ga
72Zn syn 46.5 h β 0.458 72Ga
Decay modes in parentheses are predictit, but hae nae yet been observed
· references

Zinc, in commerce an aa spelter, is a metallic chemical element; it haes the seembol Zn an atomic nummer 30. It is the first element o group 12 o the periodic table. Zinc is, in some respects, chemically seemilar tae magnesium, acause its ion is o seemilar size an its anly common oxidation state is +2. Zinc is the 24t maist abundant element in the Yird's crust an haes five stable isotopes. The maist common zinc ore is sphalerite (zinc blende), a zinc sulfide mineral. The lairgest mineable amoonts are foond in Australie, Asie, an the Unitit States. Zinc production includes froth flotation o the ore, roastin, an final extraction uisin electricity (electrowinnin).