Periodic Table
You may need a periodic table to help you answer these questions.
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Topics of this game:
- an electron on the outermost shell
- the average mass of protons, neutrons, and electrons in an atom
- the distance from the atomic nucleus
- 1
- 120 pm
- 4.002602 u
- 140 pm
- 8
- 6.94
- 182 pm
- 9.01218 u
- 112 pm
- 10.81
- 180 pm
- 3
- 12.011
- 170 pm
- 14.007
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