Question

which is a correct set of values of m for one of the subshells of n = 2?
-1, 0, 1
-1, -2, 0, 1, 2
-1, -2, -3, 0, 1, 2, 3
-1, -2, -3, -4, 0, 1, 2, 3, 4

Explanation:

Step1: Recall quantum - number rules

For a given principal quantum number \(n\), the angular - momentum quantum number \(l\) can take values from \(0\) to \(n - 1\). When \(n = 2\), \(l=0,1\).

Step2: Recall the range of magnetic quantum number \(m\)

The magnetic quantum number \(m\) ranges from \(-l\) to \(+l\). When \(l = 0\), \(m = 0\); when \(l = 1\), \(m=-1,0,1\).

Answer:

\(-1,0,1\)