The only invalid electron state and shell designation among the following is
A) $3 d , \mathrm { M } ( n = 3 )$ shell.
B) $3 s , \mathrm { M } ( n = 3 )$ shell.
C) $2 d , \mathrm {~L} ( n = 2 )$ shell.
D) $1 s , \mathrm {~K} ( n = 1 )$ shell.
E) $2 s , L ( n = 2 )$ shell.

Question

Quizplus · Accepted Answer

The $d$ subshell does not exist in the $n = 2$ energy level. The first $d$ subshell appears in the $n = 3$ level.

The Only Invalid Electron State and Shell Designation Among the Following