The maximum number of electrons that can be accommodated in all orbitals with quantum numbers $n = 3$ and $l = 2$ is $......$.

Maximum electrons in a $d$-subshell are

When the value of the principal quantum number $n$ is $3$,what are the permitted values of the azimuthal quantum numbers $l$ and the corresponding magnetic quantum numbers $m$?

In $Sr$ $(Z=38)$, the number of electrons with $l=0$ is $x$, and the number of electrons with $l=2$ is $y$. The value of $(x-y)$ is equal to:
($l=$ Azimuthal quantum number)

Which one of the following statements is incorrect?

The number of unpaired electrons in the excited state of carbon is equal to the number of unpaired electrons in which of the following?