Organic Chemistry (8th Edition)

Published by Pearson
ISBN 10: 0321768418
ISBN 13: 978-0-32176-841-4

Chapter 1 - Introduction and Review - Problems: Problem 1-1 a

Answer

$N^{13}$ : Protons = 7 neutrons= 6 $N^{14}$ : Protons = 7 neutrons= 7 $N^{15}$ : Protons = 7 neutrons= 8 $N^{16}$ : Protons = 7 neutrons= 9 $N^{17}$ : Protons = 7 neutrons= 10

Work Step by Step

Number of protons = the atomic number of the atom Since nitrogen's atomic number is 7 the number of protons in all isotopes of nitrogen will be 7. Number of neutrons = Mass number- number of protons So, $N^{13}$ : #of neutrons = 13 - 7 = 6 $N^{14}$ : 14-7 = 7 neutrons $N^{15}$ : 15 -7 = 8 neutrons $N^{16}$ : 16-7 = 9 neutrons $N^{17}$ : 17-7 = 10 neutrons
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