Atomic number 31 · metal · Atomic mass 69.723 u
| Atomic Number | 31 |
| Atomic Mass | 69.7230 u |
| Category | metal / 后过渡金属 |
| Group | 13 |
| Period | 4 |
| Block | P |
| Electron Configuration | [Ar] 3d¹⁰ 4s² 4p¹ |
| Electronegativity (Pauling) | 1.81 |
| Phase at STP | Solid |
| Density | 5.91 g/cm³ |
| Year Discovered | 1875 |
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