Answer
82 protons and 126 neutrons
Work Step by Step
Atomic number of the isotope $^{208}_{82}Pb$ = 82 = $Z$
Mass number of $^{208}_{82}Pb$ = 208 = $A$
So, number of protons = Atomic number = 82
Number of neutrons = $A - Z = 208 - 82 $ = 126
Chemistry: A Molecular Approach (3rd Edition)
by Tro, Nivaldo J.
Published by
Prentice Hall
ISBN 10:
0321809246
ISBN 13:
978-0-32180-924-7
Chapter 2 - Sections 2.1-2.9 - Exercises - Problems by Topic - Page 80: 53d
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