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What is the energy required for the electronic excitation of lithium 2+ from the first to the third Bohr atom?

A. 36.3 eV
B. 108.8 eV
C. 122.4 eV
D. 12.1 eV

Answer :

The energy required for the electronic excitation of lithium 2+ from the first to the third Bohr atom involves calculating different energy states of the atom. So, the correct option is:C. 122.4 eV

The energy required for the electronic excitation of lithium 2+ from the first to the third Bohr atom can be calculated using the energy states provided.

  1. Excitation energy from first to third Bohr atom (Li²+): +54.4 eV
  2. Energy to ionize Li²+ from first excited state: -30.6 eV
  3. Total energy needed to remove all three electrons from lithium atom: 214.4 eV

So, the correct option is:C. 122.4 eV

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