Question

If magnetic quantum number of a given atom is represented by $-3$, then what will be its principal quantum number?

• A. 2
• B. 3
• C. 4
• D. 5

Answer 1

Answer: (C)

If the highest value of magnetic quantum Number
$=-3$ then, $l=3$
( $\because$ m has value from -1 to o, $+l$ )
$\therefore$ $n=4$ ( $\because$ I has values form 0 to $n-1$ )