The azimuthal quantum number is related to

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

The number of subshells associated with $n=4$ and $m=-2$ quantum numbers is :

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

Identify the correct statements:
a) In an atom,the maximum number of electrons with $n=4$ and $m_s=+\frac{1}{2}$ is $16$.
b) There are $4$ subshells associated with $n=5$.
c) $n=2, l=1, m_l=0$ and $m_s=-\frac{1}{2}$ is a possible set of quantum numbers.
d) The number of radial nodes for $3s$ orbital is $2$.

The sum of the number of angular nodes and radial nodes for a $4d$ orbital is: