for which of the following species, the expression for the energy of electron in the n^(th)[E_(n)=(13.6Z^(2))/(n^(2))eV" atom"^(-1)] has the validity?

for which of the following species, the expression for the energy of e

1.	for which of the following species, the expression for the energy of electron in the n^(th)[E_(n)=(13.6Z^(2))/(n^(2))eV" atom"^(-1)] has the validity?
Answer» TRITIUM `Li^(2+)` DEUTERIUM `He^(2+)` Answer :A::B::C