Among the following, the INCORRECT statement is

Options

A. No two electrons in an atom can have same have the same set of four quantum numbers.
B. The maximum number of electron in the shell with principal quantum numbers is n
C. Electrons in an orbital must have opposite spin.
D. In the ground state, atomic orbitals are filled in the order of their increasing energies.

Answer

B

Explanation

The maximum number of electrons in the `n^(th)" shell is "2n^(2)`.