Discovered By: Prehistoric
Discovery year: 1500

The following table showing some properties of Zinc(Zn):

Table Example
Atomic number 30
Group 12
Period 4
Block d
Electrons 30
Protons 30
Neutrons 35
Atomic weight 65.38
Oxidation states +2
Ionic charge Zn^2+


Table Example
Electrons per shell K2 L8 M18 N2
Electron configuration 1s^2 2s^2 2p^6 3s^2 3p^6 4s^2 3d^10
Atomic radius 142 pm
Covalent radius 122 pm
Van der Waals radius 139 pm
Boiling point 907°C
Melting point 419.53°C
Phase Solid
Fusion heat 7.35 kJ.mol^-1
Thermal expansion 3.02*10^-5 K^-1


Table Example
Vaporization heat 119 kJ.mol^-1
Color State gray
Brinell hardness 142 MPa
Bulk modulus 70 GPa
Density 7140 kg.m^-3
Liquid density 6570 kg.m^-3
Mohs hardness 2.5
Refractive index 1.00205
Poisson ratio 0.25
Shear modulus 43 GPa


Table Example
Sound speed 3700 m.s^-1
Thermal conductivity 120 W.m^-1.K^-1
Young's modulus 108 GPa
Electric type Conductor
Magnetic type Diamagnetic
Volume magnetic susceptibility -1.58*10^-5
Resistivity 5.9*10^-8 Ohm.m
Superconducting point 0.85 K
Electronegativity 1.65
Valence 2
Radioactive No
Neutron cross section 1.1 barn