The only INVALID electron state and shell designation among the following is
A) 1s, K.
B) 2s, L.
C) 2d, L.
D) 3s, M.
E) 3d, M.

Name: The only INVALID electron state and shell designation among the following is A) 1s, K. B) 2s, L. C) 2d, L. D) 3s, M. E) 3d, M.
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Question

Quizplus · Accepted Answer

The designation 2d is invalid because d orbitals do not exist in the second shell. The valid orbitals in the second shell are s and p, so the correct designation for the state with two electrons in the second shell would be 2s or 2p, not 2d.

The Only INVALID Electron State and Shell Designation Among the Following