Question
Write the electronic configurations of the elements with the atomic numbers 61, 91, 101, and 109.
| Atomic Number (Element) | Electronic Configuration |
| 61 (Pm) | $[ Xe ] 4 f^5 6 s^2$ |
| 91 (Pa) | $[ Rn ] 5 f^2 6 d^1 7 s^2$ |
| 101 (Md) | $[ Rn ] 5 d^{13} 7 s^2$ |
| 109 (Unu) | $[ Rn ] 5 f^{14} 6 d^7 7 s^2$ |
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