The maximum number of unpaired electrons that can be present in $d$-orbitals is

Identify the element having the electronic configuration $1s^2, 2s^2, 2p^2$.

What is the maximum number of orbitals that can be identified with the following quantum numbers?
$n = 3, l = 1, m_l = 0$

The atomic number of an element is $17$. The number of orbitals containing electron pairs in its valence shell is

The graph between $|\psi|^2$ and $r$ (radial distance) is shown below. This represents

Given below are two statements:
Statement $I$ : For a given shell,the total number of allowed orbitals is given by $n^2$.
Statement $II$ : For any subshell,the spatial orientation of the orbitals is given by $-l$ to $+l$ values including zero.
In the light of the above statements,choose the correct answer from the options given below: