Question

Which of the following is a reasonable ground-state electron configuration?

Answer 1

1s^2 2s^2 2p^6 3s^2 3p^6 4s^2 4d^4

1s^2 1p^6 2s^2 2p^3

1s^2 2s^2 2p^6 3s^2 3p^6 4s^2 3d^1

1s^2 2s^2 2p^4 3s^2

Answer 2

1s^2 2s^2 2p^6 3s^2 3p^6 4s^2 3d^1

Answer 3

1s^2 2s^2 2p^6 3s^2 3p^6 4s^2 3d^1

Answer 4

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