Which of the given statement(s) is/are false?

(p) Orbital angular momentum of the electron having $n$ = 5 and having value of the azimuthal quantum number as lowest for this principle quantum number is $\frac{h}{\pi }$.

Q) If $n$ = 3, $l$ = 0, $m$ = 0, for the last valence shell electron, then the possible atomic number may be 12 or 13.

(R) Total spin of electrons for the atom${ }_{25}\mathrm{Mn}\text{ is }\pm \frac{7}{2}$

(S) Spin magnetic moment of inert gas is zero.