NEET Chemistry · Hard

Structure of Atom: Hydrogen-like ions MCQ

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Hydrogen-like ionsHardQuestion 21040

Question

Ionisation energy of Li2+Li^{2+} from ground state is:

  1. A
    122.4 eV
    Correct
  2. B
    13.6 eV
  3. C
    40.8 eV
  4. D
    81.6 eV

Correct answer

122.4 eV

Explanation

For Z = 3, ionisation energy is 13.6 × 9.