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Unit 22. Atoms, Elements and Compounds

2. Atoms, Elements and Compounds

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Lesson 12.1 Elements, compounds and mixtures7 pointsLesson 22.2 Atomic structure and the Periodic Table6 pointsLesson 32.3 Isotopes5 pointsLesson 42.4 Ions and ionic bonds7 pointsLesson 52.5 Simple molecules and covalent bonds7 pointsLesson 62.6 Giant covalent structures5 pointsLesson 72.7 Metallic bonding Core8 points