A) \[27.2\,eV\]
B) \[-27.2\,\,eV\]
C) \[54.4\,eV\]
D) \[54.4\,eV\]
Correct Answer: D
Solution :
Key Idea: Energy of electron in H like ions\[=-13.6\times {{Z}^{2}}eV\] For He \[\,Z=2\] \[\therefore \]E of electron in \[H{{e}^{+}}=-13.6\times {{(2)}^{2}}\] \[=-54.4\,eV\]You need to login to perform this action.
You will be redirected in
3 sec