Answer:
2. 1s² 2s² 2p^6 3s² 3p^6 4s²
3d^10 4p^6 5s² 4d^10 5p^6 6s²
4f^14 5d^10 6p^6 7s² 5f^14 6d^10 7p^6
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Answer:
2. 1s² 2s² 2p^6 3s² 3p^6 4s²
3d^10 4p^6 5s² 4d^10 5p^6 6s²
4f^14 5d^10 6p^6 7s² 5f^14 6d^10 7p^6