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Question: The ionization energy of hydrogen atom is 13.6eV. What will be the ionization energy of \(He^{+}\)...

The ionization energy of hydrogen atom is 13.6eV. What will be the ionization energy of He+He^{+}

A

13.6Ev

B

54.4eV

C

122.4eV

D

Zero

Answer

54.4eV

Explanation

Solution

I.E. of He+=13.6eV×Z2He^{+} = 13.6eV \times Z^{2}

13.6eV×4=54.4eV13.6eV \times 4 = 54.4eV