Chemistry: The Central Science (13th Edition)

Published by Prentice Hall
ISBN 10: 0321910419
ISBN 13: 978-0-32191-041-7

Chapter 6 - Electronic Structure of Atoms - Additional Exercises: 6.82c

Answer

The energy gap between the ground state and the excited state for sodium ion is $$\Delta E=3.373\times10^{-19}J$$

Work Step by Step

The question asks for the energy gap (the difference in energy) between the ground state and the excited state for the sodium ion ($\Delta E$). It is said that the energy of a photon emitted must equal the difference in energy between the two states, or in this case, the ground state and the excited state for the sodium ion.. In other words $$E_p=\Delta E=3.373\times10^{-19}J$$
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