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Chemistry Final 123
Question | Answer |
---|---|
What is an anion? | An atom that has gained electrons/ |
What is a cation? | An atom that has lost electrons |
atomic mass | protons plus neutrons |
which color of visible light has the lowest frequency? | Red |
209/83BI | 209-atomic mass/ mass number, 83-protons subract 209 from 83=126 thats how many neutrongs |