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镤
镤下载化学应用程序以查看有关化学元素的更多信息:
| 原子序数 | 91 |
| 族 | VB |
| 元素周期 | 7 |
| 质量 | 231.03587 |
| 拉丁名 | Protactinium |
| 电子排布 | [Rn]5f2 6d7s2 |
| 氧化态 | 0, 2, 3, 4, 5 |