Download Protons, Neutrons, and Electrons Practice Worksheet

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Protons, Neutrons, and Electrons Practice Worksheet
Use the periodic table to find the numbers of protons, neutrons, and electrons for atoms of the following
elements.
Name of Element
Element
Symbol
Mass
Number
Atomic
Number
Protons
Neutrons
Electrons
Boron
B
11
5
5
6
5
24
11
31
37
Sodium
Gallium
Y
89
Copper
39
29
Tc
98
Pb
207
35
43
Ytterbium
103
Ac
227
89
Mo
Thallium
54
204
Fm
No
81
100
157
259
H
Carbon
70
0
12
N
7
Ba
56
2
2
Calcium
Si
Argon
14
18
Mg
12
106
12
159
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