Question

1. Which of the following describes the transition of an electron from an excited state to...

1. Which of the following describes the transition of an electron from an excited state to the ground state?

a. An absorption of energy
b. An emission of energy
c. No change in energy

2. If the ground state of an electron in a hydrogen-like atom has an energy of -x eV, which of the following is the energy of one of the excited states?

a. -x/9 eV
b. -x/2 eV
c. -x/3 eV
d. -x/8 eV

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Answer #2

1. Option (b)

Transition of an electron from an excited state to the ground state emit energy in form of photon and this energy is given by difference of excited state energy and ground state energy.

2. Option (a)

nth state enrgy of H atom is given by

where -X eV is ground state energy.

Hence energies are-

only E3 is in options.

I will be glad to see your comment if you have any query and thumb up if you are satisfied. Thanks....

answered by: anonymous
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