Calculate the energy required for the process

cbse
structureofatom

#1

Calculate the energy required for the process
He+ (g) ------> ${{He}_{2+}}$+ (g) + ${{e}^{-}}$
The ionization energy for the H-atom in the ground state is 2.18 X ${{10}^{-18}}$ J ${{atom}^{-1}}$


#2