Bohrium vs Hassium
Side-by-side comparison of Bohrium (Bh, element 107) and Hassium (Hs, element 108) by atomic structure and physical properties.
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| Atomic number | 107 | 108 |
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| Symbol | Bh | Hs |
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| Name | Bohrium | Hassium |
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| Category | transition-metal | transition-metal |
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| Standard Atomic Weight | 270 u | 269 u |
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| Period | 7 | 7 |
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| Group | 7 | 8 |
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| Block | d | d |
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| Phase at STP | N/A | N/A |
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| Electron configuration | [Rn]5f146d57s2 | [Rn]5f146d67s2 |
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| Oxidation states | [3, 4, 5, 7] | [3, 4, 6, 8] |
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| Electronegativity (Pauling) | N/A | N/A |
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| Electron affinity | 0.44 eV | 1.1 eV |
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| Density | 3.71e+4 kg/m³ | 4.07e+4 kg/m³ |
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| Melting point | N/A | N/A |
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| Boiling point | N/A | N/A |
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| Discovery year | 1981 | 1984 |
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Key Differences
| Bh Bohrium | Hs Hassium |
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| Standard Atomic Weight | 270 u ↑ higher | 269 u ↓ lower |
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| Density | 3.71e+4 kg/m³ ↓ lower | 4.07e+4 kg/m³ ↑ higher |
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| Electron affinity | 0.44 eV ↓ lower | 1.1 eV ↑ higher |
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| Group | 7 | 8 |
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| Electron configuration | [Rn]5f146d57s2 | [Rn]5f146d67s2 |
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| Discovery year | 1981 | 1984 |
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