Select set of quantum numbers which is possible for maximum number of electrons in an atom:

Answer

d

Explanation

(A) this set represents only single electrons present in 5 s orbital ,
(b) this set represents maximum two electrons present in 5 d orbital
(c ) this set repesents one 3s one 3p and 3d electron . So maximum 3 such electrons are possibel
(d)
this set represnts one 5 s one 5p one 5d one 5 f and one 5g electrons
So maximum 5 electrons are possible hence (d) is correct .