Which orbital is represented by the wave function $\Psi_{310}$?

Which of the following does not follow the Aufbau principle?

An electronic transition from $1s$ orbital of an atom causes

Which of the following sets of orbitals may degenerate?

Which of the following orbitals will have zero probability of finding the electron in the $yz$ plane?

For the given quantum numbers,write the name of the subshell,the values of the magnetic quantum number $(m_l)$,and the number of orbitals:
$(i) \ n = 3, \ l = 2$
$(ii) \ n = 4, \ l = 3$
$(iii) \ n = 2, \ l = 0$
$(iv) \ n = 5, \ l = 1$