Atomic number 77 · transition metal · Atomic mass 192.22 u
| Atomic Number | 77 |
| Atomic Mass | 192.2200 u |
| Category | transition metal / 过渡金属 |
| Group | 9 |
| Period | 6 |
| Block | D |
| Electron Configuration | [Xe] 4f¹⁴ 5d⁷ 6s² |
| Electronegativity (Pauling) | 2.2 |
| Phase at STP | Solid |
| Density | 22.56 g/cm³ |
| Year Discovered | 1803 |
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