Chemistry - 4.1.1 A simple model of the atom, symbols, relative atomic mass, electronic charge and isotopes

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4.1.1.1 – Atoms, elements and compounds View
4.1.1.2 – Mixtures View
4.1.1.3 – The development of the model of the atom (common content with physics) View
4.1.1.4 – Relative electrical charges of subatomic particles View
4.1.1.5 – Size and mass of atoms View
4.1.1.6 – Relative atomic mass View
4.1.1.7 – Electronic structure View