## Organic Chemistry (8th Edition)

$N^{13}$ : 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
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