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 - Page 285: 7.26


2.08 pm

Work Step by Step

Speed, c = $2.997925\times10^{8}ms^{-1}$ Frequency, ν = $1.44\times10^{20} s^{-1}$ Wavelength, λ = c/ν = $\frac{2.997925\times10^{8}ms^{-1}}{1.44\times10^{20} s^{-1}}$ = $2.08\times10^{-12}m$ = 2.08 picometers ( value of the prefix 'pico' is $10^{-12}$)
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