Question

What is the second excitation energy of hydrogen atom?​

Answer 1

Answer:

Energy associated with orbits are as follows :-

Orbit 1 (n=1) —>>>> -13.6 eV

Orbit 2 (n=2) —>>>> -3.4 eV

Orbit 3 (n=3) —>>>> -1.51 eV

Excitation energy is energy required for transition of electrons from ground state (n=1) to respective state and same is equivalent to excitation potential. So first excitation means electron transition from ground state to first excited state (n=2) and second excitation means electron transition from ground state to second excited state (n=3)

Therefore first excitation potential will be difference of energy levels with n=1 and n=2 , which comes out [-13.6 - (-3.4)] = 10.2 eV

And second excitation potential will be difference in energy levels with n=1 and n=3 , which comes out to [-13.6 - (-1.51)] = 12.01 e.

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Answer 2

$\huge\bold\red{ANSWER}$

The excitation energy of an energy state is the difference between the energy of the excited state and that of the ground state. For example, for the hydrogen atom, the ground state energy(energy of the first orbit) is E1 = -13.6 eV and energy of the second orbit is E2 = -3.4 eV.

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