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Empty shells of the first 20 elements for students to draw in the electron configuration. They must first work out how many protons/neutrons/electrons there are in each atom; given the symbol; atomic number; and mass number.
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Empty shells of the first 20 elements for students to draw in the electron configuration. They must first work out how many protons/neutrons/electrons there are in each atom; given the symbol; atomic number; and mass number.