Question

The set of quantum numbers not applicable to an electron

• A. $1,1,1,+\frac{1}{2}$
• B. $1,0,0,+\frac{1}{2}$
• C. $1,0,0,-\frac{1}{2}$
• D. $2,0,0,+\frac{1}{2}$

Answer 1

Answer: (A)

The value of I can never be equal to $n$
$\therefore n=1,l=1$ which is not possible