Question

Determine the absorbed energy when the electron is moved from '1' to '2'

Answer 1

Explanation:

When an electron jumps from lower orbitals to higher orbital the energy absorbed can be determined by,

$hv = E_{n2} - E_{n1}\\\\Now, E_{n} = \frac{-13.6}{n^{2} } eV\\\\So, E_{n1} = -13.6 eV\\and E_{n2} = -3.4 eV$

Therefore,  $hv = E_{n2} - E_{n1} =$  -13.6 - (-3.4) eV

hν = 10.2eV

Hence, 10.2eV is the amount of energy absorbed during the transition from the first orbitals to the second orbital.