Multiple Choice
The only invalid electron state and shell designation among the following is
A) 1s,K (n = 1) shell.
B) 2s,L (n = 2) shell.
C) 2d,L (n = 2) shell.
D) 3s,M (n = 3) shell.
E) 3d,M (n = 3) shell.
Correct Answer:

Verified
Correct Answer:
Verified
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