Yb
Ytterbium
Z 70 173.045 g/molLanthanide
Nucleus
70 Protons
103 Neutrons
70 Electrons (2 Valence)
Shell distribution: K2 • L8 • M18 • N32 • 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]4f146s2
Oxidation States
CommonRare
0
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Radii
Empirical
175 pm1.75 Å
Calculated
222 pm2.22 Å
Covalent
187±8 pm1.87±0.08 Å
Van der Waals
242 pm2.42 Å
IonicYb3+
86.8 pm0.868 Å
Crystal Structure
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Face-centered cubicStandard state
Pearson symbol
cF4
Space group
Fm3m No. 225
Density
6.9 g/cm³