Answer
15 protons, 18 neutrons
Work Step by Step
Atomic number of the isotope $^{33}_{15}P$ = 15 = $Z$
Mass number of $^{33}_{15}P$ = 33 = $A$
So, number of protons = Atomic number = 15
Number of neutrons = $A - Z = 33-15$ = 18
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: 54d
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