" The ratio of the energy of electrons in "1^(" st ")" shell of "He^(+)" and "3^(" rd ")" shell of "Li^(+2)" is "

The potential energy of electron in fourth shell of He^(oplus) ion is :-

If the kinetic energy of electron in n^( th ) shell of H - atom is K then its potential energy in n^(th ) shell will be

What is the potential energy of an electron present in N- shell of the Be^(3+) ion ?

Maximum electron in 1^(st) shell having m_(l) =2 will be

According to Bohr's theory, the ratio of electrostatic force of attraction acting on electron 3^(rd) orbit of He^(+) ion and 2^(nd) orbit of Li^(2+) ion is ((3)/(2))^(x) . Then, the value of x is :

Find the ratio of frequency of e^(-) in 1^(st) orbit of H atom to 3^(rd) of He^(+) ion.