Question

The bohrs energy equation for h atom reveals that the energy level of a ashell is given by E=-13.6/nsquare the smallest amount that an h atm will absorb in ground state is

Answer 1

When a ground state electron absorbs energy from an incoming photon, it moves to a higher energy level, which is one way of saying that it moved from ground state to an excited state
energy2= -13.6/4= -3.4
actual energy = energy1 - energy2
= -13.6+3.4
= - 10.2 eV