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12 questions from this quiz
Protons, neutrons, electrons
Protons and neutrons
+1
0
Virtually no mass
Equal numbers of protons & electrons
Number of protons
1×10−101 \times 10^{-10}1×10−10 m
100,000 times smaller
Over 99%
It jumps to a higher energy level
It drops to a lower energy level
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