Answer:
Energy Level
S orbitals. P orbital d orbital. f orbital
1/ 1S^2. - - -
2/ 2S^2. 2P^6. - -
3/ 3S^2. 3P^6. 3d^10. -
4/ 4S^2. 4P^6. 4d^10. 4f^10^14
5/ 5S^2. 5P^6. 5d^10. 5f^10^14
6/ 6S^2. 6P^6. 6d^10. 6f^10^14
7/ 7S^2. 7P^6. 7d^10. 7f^10^14
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