Question
Physics Question on Atomic Physics
If ionising energy of H atom is 13.6eV, then the second ionising energy of He should be
A
13.6eV
B
27.2eV
C
54.4eV
D
cannot be predicted
Answer
54.4eV
Explanation
Solution
The correct option is (C): 54.4eV
If ionising energy of H atom is 13.6eV, then the second ionising energy of He should be
13.6eV
27.2eV
54.4eV
cannot be predicted
54.4eV
The correct option is (C): 54.4eV