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General
Name, Symbol, Number zinc, Zn, 30
Chemical series transition metals
Group, Period, Block 12, 4, d
DensityFor other meanings of density, see density (disambiguation Density (symbol: rho Greek: rho) is a measure of mass per unit of volume. The higher an object's density, the higher its mass per volume. The average density of an object equals its total mass div, Hardness 7140 kg/m3Kilogram per cubic metre is the SI measure of density and is represented as kg/m³, where kg stands for kilogram and m³ stands for cubic metre. The density of water is about 1000 kg/m³, since a cubic metre of water weighs about a tonne. kg/m³" is sometimes, 2.5
AppearanceFor alternative meanings, see color (disambiguation). visual arts. Color (or colour is a sensation which (in humans) derives from the ability of the fine structure of the eye to distinguish three differently filtered analyses of a view. The perception of blueish pale grey
Atomic properties
Atomic weightIn reference to a certain isotope of a chemical element, atomic weight (more accurately relative atomic mass though also called simply atomic mass is the mass of one atom of the isotope expressed in units atomic mass unit amu) such that the Carbon-12 isot 65.409 amu
Atomic radiusAtomic radius is the distance from the atomic nucleus to the outmost stable electron orbital in a atom that is at equilibrium and is measured in picometers or Angstroms. Atomic radii are called covalent radii (a reference to the types of bonds formed) whe (calc.) 135 (142) pm
Covalent radiusCovalent radius in chemistry corresponds to half of the distance between two identical atomic nuclei, bound by a covalent bond. It is expressed in terms of pm or A. Chemistry. 131 pmPicometre ( American spelling: picometer is an SI measure of length that is equal to 10−12 of a metre. Its symbol is pm and it is commonly used in measuring atomic-scale distances. Atom diameters are in the range from ~30 to 600 pm. 1 pm 1 × 10&minu
van der Waals radius 139 pm
Electron configuration [ Ar]3d104s2
e- 's per energy level 2, 8, 18, 2
Oxidation states ( Oxide) 2 (amphoteric)
Crystal structure hexagonal
Physical properties
State of matter solid ( diamagnetic)
Melting point 692.68 K (787.15 ° F)
Boiling point 1180 K (1665 °F)
Molar volume 9.16 ×10-6 m3/mol
Heat of vaporization 115.3 kJ/mol
Heat of fusion 7.322 kJ/mol
Vapor pressure 192.2 Pa at 692.73 K
Velocity of sound 3700 m/s at 293.15 K
Miscellaneous
Electronegativity 1.65 ( Pauling scale)
Specific heat capacity 390 J/(kg*K)
Electrical conductivity 16.6 106/(m· ohm)
Thermal conductivity 116 W/(m*K)
1st ionization potential 906.4 kJ/mol
2nd ionization potential 1733.3 kJ/mol
3rd ionization potential 3833 kJ/mol
4th ionization potential 5731 kJ/mol
Most stable isotopes
iso NA half-life DM DE M eV DP
64Zn 48.6% Zn is stable with 34 neutrons
65Zn {syn.} 244.26 days ε 1.352 65 Cu
66Zn 27.9% Zn is stable with 36 neutrons
67Zn 4.1% Zn is stable with 37 neutrons
68Zn 18.8% Zn is stable with 38 neutrons
72Zn {syn.} 46.5 hours β 0.458 72 Ga
SI units & STP are used except where noted.

Zinc is a chemical element in the periodic table that has the symbol Zn and atomic number 30.



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