Question

If (n + l) = 4, then maximum possible sub-shells will be :

• A. $1$
• B. $2$
• C. $3$
• D. $4$

Answer 1

The correct option is B $2$

There are two possiblity when $n+l=4$. These two are 3p and 4s. For 3p, n = 3 and p = 1, so 3 + 1 = 4 and for 4s, n = 4 and l = 0, so 4 + 0 = 4. Therefore, maximum possible subshells for which $n+l=4$ will be 2.