An electron in a hydrogen atom makes a transition from the ground level to the third if the energy at the ground level calculate the energy at the third level [h=6.6*10^-34js,f=10^15Hz
Given:
Initial energy level (ground level) of electron in hydrogen atom = E1 = ?
Frequency of transition = f = 10^15 Hz
Planck's constant = h = 6.6*10^-34 J*s
Energy of transition:
ΔE = hf
ΔE = (6.6*10^-34 J*s) * (10^15 Hz)
ΔE = 6.6*10^-19 J
Final energy level (third level) of electron in hydrogen atom = E2 = E1 + ΔE
Therefore, the energy at the third level will be equal to the energy at the ground level plus the energy of transition:
E2 = E1 + 6.6*10^-19 J