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Manipal MET2015ChemistryStructure of Atom

The ionisation energy of hydrogen atom is 13.6 eV . What will be the ionisation energy of He ⁺ ?

Options

  1. A13.6 eV
  2. B54.4 eV
  3. C122.4 eV
  4. DZero

Correct answer

B. 54.4 eV

Step-by-step solution

Ionisation energy of He ⁺=13.6 Z^2 eV aligned & =13.6 (2)^2 eV & =13.6 4 eV =54.4 eV aligned

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