15 questions · 20 seconds each · Speed bonus scoring
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Covers subatomic particles, atomic & mass number, isotope notation, calculating p/n/e for atoms and ions, electron configurations, Bohr-Rutherford diagrams & average atomic mass
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Want to review before another go? Head back to the
interactive tools for the diagram builder and the
average atomic mass calculator, or the
applications page for carbon dating and mass spectrometry.