Chemistry: Principles and Practice (3rd Edition)

Published by Cengage Learning
ISBN 10: 0534420125
ISBN 13: 978-0-53442-012-3

Chapter 7 - Electronic Structure - Questions and Exercises - Exercises: 7.25

Answer

1.21 pm

Work Step by Step

c = $2.997925\times10^{8}ms^{-1}$ ν = $2.47\times10^{20} Hz$ λ = c/ν = $\frac{2.997925\times10^{8}ms^{-1}}{2.47\times10^{20}s^{-1}}$ = $1.21\times10^{-12} m$ = 1.21 pm ( value of the prefix 'pico' is $10^{-12}$ ).
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