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1.1 A Simple Model of the Atom, Symbols, Reactive Atomic Mass, Electronic…
1.1 A Simple Model of the Atom, Symbols, Reactive Atomic Mass, Electronic Charge and Isotopes
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Electronic structure
Maximum electrons for first 3 shells: 2, 8, 8
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Atoms, elements and compounds
Atoms
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Isotopes
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Same number of protons, different number of neutrons
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Mixtures
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Easily separated
Crystallisation, distillation (fractional/simple), filtration and chromatography