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Cards to print and give out to students for teaching of atomic number/mass number; working out of protons neutrons and electrons and the idea of isotopes. Elements from 1-20 plus Br and U included for isotopes.
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Cards to print and give out to students for teaching of atomic number/mass number; working out of protons neutrons and electrons and the idea of isotopes. Elements from 1-20 plus Br and U included for isotopes.