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The electron in a hydrogen atom is in the first excited state, when the electron acquires an additional 2.86eV of energy. What is the quantum number n of the state into which the electron moves?

The electron in a hydrogen atom is in the first excited state, when the electron acquires an additional 2.86eV of energy. What is the quantum number n of the state into which the electron moves?

Grade:12

3 Answers

SAGAR SINGH - IIT DELHI
879 Points
11 years ago

Dear karthik,

En=-(13.6eV) * (z^2 / (nfinal)^2 - (ninitial)^2)

En=-2.86
z=1
ninitial=2

 

then nfinal comes out to be 5

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Sagar Singh

B.Tech IIT Delhi

SAGAR SINGH - IIT DELHI
879 Points
11 years ago

Dear student,

13.86/n^2=2.86

From here calculate the value of n.

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Sagar Singh

B.Tech, IIT Delhi

SAGAR SINGH - IIT DELHI
879 Points
11 years ago

Dear student,

Your query has been solved...please post your same doubt only once...

Please feel free to ask your queries here. We are all IITians and here to help you in your IIT JEE preparation.

All the best.

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Sagar Singh

B.Tech, IIT Delhi

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