The number of possible spatial orientations of an electron in an atom is given by its

$A$: The energy of an electron can be determined by the principal quantum number.
$R$: The principal quantum number $(n)$ determines the possible distance of the electron from the nucleus.

The maximum number of electrons accommodated in $5f$ orbitals are

If the atomic number of element $X$ is $7,$ the best electron dot symbol for the element is

What are the electronic configurations of elements with atomic numbers $Z = 117$ and $Z = 120$?

Which of the following does not have valence electrons in the $3d-$subshell?