If the energy of a hydrogen atom in `nth` orbit is `E_(n)`, then energy in the nth orbit of a singly ionised helium atom will be

The energy of hydrogen atom in the nth orbit is En, then the energy in the nth orbit of single ionised helium atom is

The energy of hydrogen atom in nth orbit is E_n . Then the energy in nth orbit of single ionised helium atom will be

The radius of Bohrs first orbit is r , then the radius of the first orbit in the singly ionised helium atom is

Calculate the radius of third orbit of hydrogen atom. Compare it with the same radius of second Bohr orbit of singly ionised helium atom.

The ionisation energy of hydrogen atom is 13.6 eV , the ionisation energy of a singly ionsed helium atom would be

The energy of an electron in nth orbit of hydrogen atom is