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  • The energy of  is required to remove one of the electrons from a neutral helium ato

The energy of 24.6 \mathrm{eV} is required to remove one of the electrons from a neutral helium atom. The energy (in eu) required to remove both the electrons from a neutral helium atom is:-
 

Option: 1

 79.0
 


Option: 2

51.8


Option: 3

49.2


Option: 4

38.2


Answers (1)

best_answer

The ionisation energy of helium atom.

=13.6 \mathrm{z}^2=13.6 \times 2^2=54.4 \mathrm{eV}

so that total energy heeded to remove both the electrons from helium atom = 24 \cdot 6+54.4
=79.0 \mathrm{eV}
 

Posted by

Divya Prakash Singh

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