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Predicted propertiesMany physical properties of this element are theoretical calculated values, not experimental measurements. Transactinides (Z ≥ 104) are only synthesized as a few atoms with very short half-lives. Source: IUPAC 2021.
3D Bohr-model representation of the Bohrium atom (symbol Bh, atomic number Z=107). Electron shell configuration: 2, 8, 18, 32, 32, 13, 2 electrons.
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Bohr model · educational
Electron configuration
Full1s² 2s² 2p⁶ 3s² 3p⁶ 3d¹⁰ 4s² 4p⁶ 4d¹⁰ 5s² 5p⁶ 4f¹⁴ 5d¹⁰ 6s² 6p⁶ 5f¹⁴ 6d⁵ 7s²
Short[Rn] 5f¹⁴ 6d⁵ 7s²
Valence electrons7
KLMNOPQ shells
K2
L8
M18
N32
O32
P13
Q2
Electronegativity
Pauling—
Allen—
Mulliken (eV)—
Atomic radii
Empirical—
Calculated—
Covalent—
Van der Waals—
Successive ionisation energies
I₁742 kJ/mol
Electron affinity—
Oxidation states
+3+4+5+7
Bold states = most common.