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12 questions from this quiz
Charge +1, mass 1
Charge -1, mass 0
Protons and neutrons
It contains protons
In the nucleus
Protons cancel out electrons
10−1010^{-10}10−10 m
100,000 times
Moves to higher energy level
Drops to lower energy level
About 10−1510^{-15}10−15 m
4×1054 \times 10^{5}4×105
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