Ho
Holmium
Z 67 164.93 g/molLanthanide
Nucleus
67 Protons
98 Neutrons
67 Electrons (3 Valence)
Shell distribution: K2 • L8 • M18 • N29 • O8 • P2 • Q0
Electron Configuration
Energy
7p
6d
5f
7s
6p
5d
4f
6s
5p
4d
5s
4p
3d
4s
3p
3s
2p
2s
1s
[Xe]4f116s2
Radii
Empirical
175 pm1.75 Å
Calculated
226 pm2.26 Å
Covalent
192±7 pm1.92±0.07 Å
van Der Waals
216 pm2.16 Å
Oxidation States
CommonRare
0
0
+2
+3
Crystal Structure
Use the arrow keys to rotate, hold Shift with the left and right arrows to roll, and press Home to reset the view.
Hexagonal close-packed