The orbital having $3$ angular nodes and $3$ total nodes is:

Few statements are given regarding nodes in the orbitals. Mark the statement which is not correct.

In any atom,which sub-shell will have the highest energy among the following?

Not considering the electronic spin,the degeneracy of the second excited state $(n=3)$ of $H$ atom is $9$,while the degeneracy of the second excited state of $H^{-}$ is

Which of the following statements are correct?
$(a)$ When an electron in an atom moves from $n=4$ to $n=2$,it gains energy.
$(b)$ An electron in a $3p$ orbital would have less energy than an electron in a $2p$ orbital.
$(c)$ $A$ $3s$ subshell has a maximum of $2$ electrons.
$(d)$ $A$ $3^{rd}$ orbit may contain a maximum of $10$ electrons.

When the principal quantum number is $n = 3$,the possible values of the azimuthal quantum number $(l)$ are: