Protons, Neutrons, And Electrons Practice Worksheet With Answers
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1
2Protons, Neutrons, and Electrons Practice
Worksheet
Fill in the blanks in the following worksheet. Please keep in mind that the isotope
represented by each space may NOT be the most common isotope or the one
closest in atomic mass to the value on the periodic table.
Atomic
Atomic
Atomic
Protons
Neutrons Electrons
symbol
number
mass
B
6
11
24
31
37
39
89
29
35
43
100
Pb
207
102
70
89
225
Mo
53
81
206
100
159
No
261
Yb
172
106
159
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