Which of the following represents the ground state of an atom?

The maximum number of electrons that can be accommodated in the $M$ shell is

For $d$ electrons,the azimuthal quantum number is

The radial part of the wave function is determined by which quantum numbers?

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

The ground state energy of a hydrogen atom is $-13.6 \ eV$. Consider an electronic state $\Psi$ of $He^+$ whose energy,azimuthal quantum number,and magnetic quantum number are $-3.4 \ eV$,$2$,and $0$ respectively. Which of the following statement$(s)$ is(are) true for the state $\Psi$?
$(1)$ It has $2$ angular nodes
$(2)$ It has $3$ radial nodes
$(3)$ It is a $4d$ state
$(4)$ The nuclear charge experienced by the electron in this state is less than $2e$,where $e$ is the magnitude of the electronic charge.