Answer
$7$
Work Step by Step
We know that
$E_3=-(13.6eV)/(3^2)=-1.51eV$
$E_n=E_3+\Delta E=-1.51+1.23=-0.281eV$
$E_n=-\frac{13.6}{n^2}$
This can be rearranged as:
$n=\sqrt{\frac{-13.6}{E_n}}$
$n=\sqrt{\frac{-13.6eV}{-0.281eV}}$
$n=7$
Physics Technology Update (4th Edition)
by Walker, James S.
Published by
Pearson
ISBN 10:
0-32190-308-0
ISBN 13:
978-0-32190-308-2
Chapter 31 - Atomic Physics - Problems and Conceptual Exercises - Page 1112: 22
Update this answer!
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.
