Atomic number 107 · transition metal · Atomic mass 270 u
| Atomic Number | 107 |
| Atomic Mass | 270.0000 u |
| Category | transition metal / 过渡金属 |
| Group | 7 |
| Period | 7 |
| Block | D |
| Electron Configuration | [Rn] 5f¹⁴ 6d⁵ 7s² |
| Electronegativity (Pauling) | — |
| Phase at STP | Solid |
| Density | 37.1 g/cm³ |
| Year Discovered | 1981 |
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