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Zinc metal Solid
Symbol: Zn
Atomic number: 30
Atomic mass: 65.39
Group: Metal
CAS-number: 7440-66-6

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Physical data

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Thermal data

 

Steric data

Shells: 2,8,18,2
Orbitals: [Ar] 3d10 4s2
Electronegativity: 1.7, 1.6
1. Ionization potential: 9.3941 eV
2. Ionization potential: 17.964 eV
3. Ionization potential: 39.722 eV
Oxidation states: 2
Electrical conductivity: 0.166 10^6
Melting point: 419.58 °C
Boiling point: 907 °C
Specific heat: 0.39 J/gK
Heat of fusion: 7.322 kJ/mol
Heat of vaporization: 115.30 kJ/mol
Thermal conductivity: 1.16 W/cmK
Atomic radius: 1.53 Å
Ionic radius: 0.74 Å ()
Covalent radius: 1.25 Å
Atomic volume: 9.2 cm³/mol
Density (293 K): 7.14 g/cm³
Crystal structure: Hexagonal
Hexagonal
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Isotopes

NuclideAbundance [%]MassSpinHalflifeDecay modeDecay tree
62Zn06209.26hEC,Beta+View
63Zn063038.5mBeta+,ECView
64Zn48.663.92910--stable--
65Zn064.9265/2243.8dEC,Beta+View
66Zn27.965.9260--stable--
67Zn4.166.92715/2--stable--
68Zn18.867.92480--stable--
69Zn0691/255.6mBeta-View
69Znm0699/213.76hIT,Beta-View
70Zn0.669.92530--stable--
72Zn072046.5hBeta-View
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Other info

Name origin:German: zink (German for tin)
Description:Bluish-silver, ductile metal.
Discovered by:Known to the ancients
Year:--
Place:Germany
Sources:Found in the minerals zinc blende (sphalerite) (ZnS), calamine, franklinite, smithsonite (ZnCO3), willemite, and zincite (ZnO).
Use(s):Used to coat other metal (galvanizing) to protect them from rusting. Also used in alloys such as brass, bronze, nickel. Also in solder, cosmetics and pigments.
 
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