Stable isotope Holmium (Ho)

Isotope Z(p) N(n) Atomic Mass Natural Abundance Nuclear Spin
Ho-165 67 98 164.930319 100.00% 7/2-

Properties of Holmium

Name Holmium
Symbol Ho
Atomic number 67
Atomic weight 164.93
Standard state Solid at 298 ºK
CAS Registry ID 7440-60-0
Group in periodic table N/A
Group name Lanthanoid
Period in periodic table 6 (Lanthanoid)
Block in periodic table f-block
Color Silvery white
Classification Metallic
Melting point 1472 °C
Boiling point 2695 °C
Vaporization point 2694 ºC
Thermal conductivity 16.2 W/(m·K)
Electrical resistivity 87.0 µΩ·cm at 25 ºC
Electronegativity 1.2
Specific heat 0.38 kJ/kg K
Heat of vaporization 265 kJ·mol-1
Heat of fusion 17 kJ·mol-1
Density of liquid 8.34 g/cm3 at 1472 °C
Density of solid 8.78 g/cm3
Electron configuration [Xe]4f116s2
Metallic radius 1.767 Å (coordination number 12)
Atomic volume 18.78 cm3/mol
Oxidation state +3