Question

First excitation potential of H atom is :
(1) 10.2 eV
(2) 3.4 eV
(3) O
(4) - 3.4 eV​

Answer 1

it is 10.2....

ionisation potential is the difference between excited state and ground state....

now, energy of 2nd orbit is 3.4eV

excitation potential= -3.4-(-13.6)

=10.2

Answer 2

Answer:

Option (1) 10.2

Explanation:

Hope it might help u..