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Energy required for the electron excitation in Li ⁺⁺ from the first to the third Bohr orbit is :

Options

  1. A36.3 eV
  2. B108.8 eV
  3. C122.4 eV
  4. D12.1 eV

Correct answer

B. 108.8 eV

Step-by-step solution

E_n=-13.6 Z^2 n^2 E_ L ^ * * =-13.6 9 1 =-122.4 eV E_ L ^ * * =-13.6 9 9 =-13.6 eV E=-13.6-(-122.4)=108.8 eV

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