What is the maximum number of electrons present in the main energy level in which the g subshell appears for the first time? Find the atomic number of the element to be discovered in which the dif- ferentiating electron is the only electron in the first 'g' subshell.

Explanation

(i) l value for 'g' subshell
(ii) total number of degenerate orbitals in 'g' subshell
(iii) number of electrons in 'g' subshell
(iv) main energy level in Which 'g' subshell first appears
(v) orbitals that have lower energy than the flrst g orbital