Stable isotope Scandium (Sc)

Isotope Z(p) N(n) Atomic Mass Natural Abundance Nuclear Spin
Sc-45 21 24 44.955910 100.00% 7/2-

Properties of Scandium

Name Scandium
Symbol Sc
Atomic number 21
Atomic weight 44.956
Standard state Solid at 298 °K
CAS Registry ID 7440-20-2
Group in periodic table 3
Group name None
Period in periodic table 4
Block in periodic table d-block
Color Silvery white
Classification Metallic
Melting point 1541 °C
Boiling point 2831 °C
Thermal conductivity 15.8 W/(m·K) at 298.2 °K
Electrical resistivity 61.0 µΩ·cm at 22 °C
Electronegativity 1.30
Specific heat 0.57 kJ/kg K
Heat of vaporization 318 kJ·mol-1
Heat of fusion 16 kJ·mol-1
Density of solid 2.99 g/cm3
Electron configuration [Ar]3d14s2
Atomic radius 1.62 Å
Ionic radius Sc3+: 0.75 Å (coordination number 6)
Oxidation state +3