The set of quantum numbers $n = 3$,$l = 0$,$m = 0$,$s = -1/2$ belongs to the element

For the energy level with the principal quantum number $n = 3,$ the number of possible orbitals is

Which of the following statements concerning the four quantum numbers is false?

Write about $p$-orbitals.

The number of electrons with $(n+\ell)$ values equal to $3, 4$ and $5$ in an element with atomic number $(Z) = 24$ are respectively $(n =$ principal quantum number and $\ell =$ azimuthal quantum number).

Which of the following sets of quantum numbers is not possible?