Atomic number 53 · halogen · Atomic mass 126.9 u
| Atomic Number | 53 |
| Atomic Mass | 126.9000 u |
| Category | halogen / 卤素 |
| Group | 17 |
| Period | 5 |
| Block | P |
| Electron Configuration | [Kr] 4d¹⁰ 5s² 5p⁵ |
| Electronegativity (Pauling) | 2.66 |
| Phase at STP | Solid |
| Density | 4.933 g/cm³ |
| Year Discovered | 1811 |
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