Db
Dubnium
Z 105 268.0 g/molTransition Metal Radioactive
Nucleus
105 Protons
163 Neutrons
105 Electrons (5 Valence)
Shell distribution: K2 • L8 • M18 • N32 • O32 • P11 • Q2
Electron Configuration
Energy
7p
6d
5f
7s
6p
5d
4f
6s
5p
4d
5s
4p
3d
4s
3p
3s
2p
2s
1s
[Rn]5f146d37s2
Oxidation States
CommonRare
0
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Radii
N/A
Empirical
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Calculated
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Covalent
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Van der Waals
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Ionic
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Crystal Structure
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Body-centered cubic
Pearson symbol
cI2
Space group
Im3m No. 229