Question

Which combination of quantum number n , l,m and s a for the electron in an atom does not provide a permissible solution of the wave equation?

Answer 1

The three quantum numbers (n, l, and m) that describe an orbital are integers: 0, 1, 2, 3, and so on. The principal quantum number (n) cannot be zero. The allowed values of n are therefore 1, 2, 3, 4, and so on. The angular quantum number (l) can be any integer between 0 and n - 1.