Atomic number 40 · transition metal · Atomic mass 91.224 u
| Atomic Number | 40 |
| Atomic Mass | 91.2240 u |
| Category | transition metal / 过渡金属 |
| Group | 4 |
| Period | 5 |
| Block | D |
| Electron Configuration | [Kr] 4d² 5s² |
| Electronegativity (Pauling) | 1.33 |
| Phase at STP | Solid |
| Density | 6.52 g/cm³ |
| Year Discovered | 1789 |
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