Atomic number 35 · halogen · Atomic mass 79.904 u
| Atomic Number | 35 |
| Atomic Mass | 79.9040 u |
| Category | halogen / 卤素 |
| Group | 17 |
| Period | 4 |
| Block | P |
| Electron Configuration | [Ar] 3d¹⁰ 4s² 4p⁵ |
| Electronegativity (Pauling) | 2.96 |
| Phase at STP | Liquid |
| Density | 3.1028 g/cm³ |
| Year Discovered | 1826 |
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