Question

28. For the principal quantum numbere n = 4, it is possible to have:
(A) only s and p orbitals
(B) only s, p, d and forbitals
(C) only s, p and d orbitals
(D) only s orbital​

Answer 1

Explanation:

only s orbital

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Answer 2

$\huge \color{blue}ANSWER:$

For n = 4, l can have values of 0, 1, 2, and 3. Thus, s, p, d, and f subshells are found in the n = 4 shell of an atom. For l = 0 (the s subshell), ml can only be 0. Thus, there is only one 4s orbital.