Which of the following is NOT a general selection rule for the filling of electron shells?

a. For a particular n, the subshells fill in the order s, p, d, f, ...
b.Shielding affects the ordering of energy levels as described by n and l.
c. The orbital and spin angular momentum in each shell and subshell are restricted by Hund's rules.
d. Electrons usually completely fill a subshell before starting another shell.
e. For the s shell there are 2 electrons, for the p shell 6, for the d shell 10, and for the f shell 16.


e.
This statement is not true. The f subshells each take 14 electrons. Each l value subshell can take 2(2l + 1) electrons.

Physics & Space Science

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