Protons, Neutrons, And Electrons Practice Worksheet With Answers Page 2
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2Solutions for the Protons, Neutrons, and Electrons Practice Worksheet:
Atomic
Atomic
Atomic
Protons
Neutrons Electrons
symbol
number
mass
B
5
5
6
5
11
Na
11
11
13
11
24
Ga
31
31
37
31
68
Y
39
39
50
39
89
Cu
29
29
35
29
64
Tc
43
43
57
43
100
Pb
82
82
125
82
207
Yb
70
70
102
70
172
Ac
89
89
136
89
225
Mo
42
42
53
42
95
Tl
81
81
125
81
206
Fm
100
100
159
100
259
No
102
102
159
102
261
Yb
70
70
101
70
172
Sg
106
106
159
106
265
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