Question

The maximum number of electrons in an atom in which the last electron filled has the quantum numbers n =3, l=2 and m= -1?​

Answer 1

10

Explanation:

since orbitals =5

no of electron can be filled =5×2=10

Answer 2

Answer:

27 or 30 confusion

Explanation:

27 if we consider second d orbital m=-1 and electrons fill orderly after one by one.

30 if electron don't fill orderly after one by one.

as energy level are same I think 30 is most accurate answer