1.

If the ionization energy of He^(+)is 54.4 eV then

Answer»

I.E of H is 13.6 eV and that of `LI^(+2) 122.4eV`
I.E of H is 13.6 eV and thatof `Li^(+2)` cannot be DETERMINED
I.E of H is 13.6 eV and that of `Li^(+2)` is 27.2 eV
All of the above are wrong

Answer :A


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