The total energy of an electron in `He^(+)` ion in `2` nd orbit is `-xJ`.If the `KE` of an electron in `2`nd excited state of `Li^(2+)` ion is (a.x) `J` ,find `a`.

What is the energy of the electron in He+ ion in the ground state ?

The energy of an electron in first Bohr's orbit of H atom is -13.6eV . The energy value of electron in the first excited state of Li^(2+) is :

The total number of valence electrons in 4. 2g of N_3^- ion are :

Find ratio of velocities of electrons in 2^(nd) excited state of Li^(+2) ion & 3^(rd) excited state of H-atom.

Calculate the radius of 2^(nd) excited state of Li^(+2)

The total energy of an electron in the ground state of hydrogen atom is - 13.6 eV . The potiential energy of an electron in the ground state of Li ^(2+) ion will be

find kinetic energy, electrostatic potential energy and total . energy of single electron in 2nd excited state of Li^(+2) atom.

The velocity of an electron in the first orbit of H atom is v. The velocity of an electron in the 2nd orbit of He^+ atom.

The mangnitude of pontential energy of electron in n^(th) excited state of He^(+) ion is (8)/(81) time the kinetic energy of electron of excited state of Li^(2+) ion. Find 'n'

In a hydrogen atom , If the energy of electron in the ground state is -x eV ., then that in the 2^(nd) excited state of He^(+) is