Dy
Dysprosium
Z 66 162.5 g/molLanthanide
Nucleus
66 Protons
97 Neutrons
66 Electrons (3 Valence)
Shell distribution: K2 • L8 • M18 • N28 • 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]4f106s2
Radii
Empirical
175 pm1.75 Å
Calculated
228 pm2.28 Å
Covalent
192±7 pm1.92±0.07 Å
van Der Waals
229 pm2.29 Å
Oxidation States
CommonRare
0
0
+2
+3
+4
Crystal Structure
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Hexagonal close-packed