Stable isotope Manganese (Mn)

Isotope Z(p) N(n) Atomic Mass Natural Abundance Nuclear Spin
 Mn-55 25 30 54.938049 100.00% 5/2-

Properties of Manganese

Name Manganese
Symbol Mn
Atomic number 25
Atomic weight 54.938
Standard state Solid at 298 °K
CAS Registry ID 7439-96-5
Group in periodic table 7
Group name None
Period in periodic table 4
Block in periodic table d-block
Color Silvery metallic
Classification Metallic
Melting point 1244 °C
Boiling point 1962 °C
Thermal conductivity 7.81 W/(m·K) at 298.2 °K
Electrical resistivity 185.0 µΩ·cm at 25 °C
Electronegativity 1.5
Specific heat 0.48 kJ/kg K
Heat of vaporization 220 kJ·mol-1
Heat of fusion 13.2 kJ·mol-1
Density of solid 7.21-7.44 g/cm3
Electron configuration [Ar]4s23d7
Atomic radius 1.27 Å
Oxidation states 0, +1, +2, +3, +4, +5, +6, +7
Most common oxidation states +2, +4, +7