Question
Question: Ionisation energy of hydrogen atom is 13.6 eV. Then the energy required to ionise a hydrogen atom in...
Ionisation energy of hydrogen atom is 13.6 eV. Then the energy required to ionise a hydrogen atom in which the electron is in the second orbit from the nucleus is (eV)
A
–13.6
B
3.4
C
10.2
D
13.6
Answer
3.4
Explanation
Solution
I.E. = E1 – E2
= 0 – (3.4) = 3.4 eVs