Question

For principle quantum number, n = 4, the total number of orbitals having l = 3 is
(a) 3
(b) 7
(c) 5
(d) 9

Answer 1

Answer:

7 is the answer

number of orbitals is 2l+1

=2(3)+1=6+1=7 orbitals

Answer 2

Answer:

The answer is (c) = 7

Explanation:

Each subshell of quantum number l contains 2l+1 orbitals. Thus, for l=3, there are (2×3)+1=7 orbitals.

Hope this helps !