heres a question-

Question

If for any electron in an orbital another parameter 'B' is defined as B = n + / + m, where n, l, m are the quantum numbers of that orbital then what will be the maximum value of B for the last electron of Br-35

I found out that the last is 4p5, so n=4, l=1, what would m be equal to?

Answer 1

m = -l to +l or in this case -1, 0, +1

Since you have 4p⁵, l = 0 (but since you are looking at Br^-, wouldn't it be 4p⁶?

Reasoning (based on 4p⁵)

px py pz

↑↓ ↑↓ ↑

-1 0 +1

Now, it you wanted to look at 4p⁶, then l = +1 instead of 0.