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10 questions
How many protons are in Carbon (C)?
6
12
1
18
How many electrons does Copper (Cu) have?
29
64
35
58
How many electrons does Barium (Ba) have?
56
81
137
218
How many neutrons does Sodium (Na) have?
11
23
34
12
What is the atomic mass of Fluorine?
9
18
17
19
What does the nucleus of an Atom consist of?
Protons + Electrons
Neutrons + Electrons
Atoms
Protons + Neutrons
How many neutrons are in potassium (K) ?
39
19
20
58
How many protons are in Oxygen (O) ?
2
6
8
15
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