34. Atoms and Bonding EOY Revision L1 [2021] SEC 2 MATHS + SCI MOVIES (1st Gen)
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34. Atoms and Bonding EOY Revision L1 [2021]

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34. Atoms and Bonding EOY Revision L1 [2021]

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1. 34. Atoms and Bonding EOY Revision L1 [2021]

This lesson, we started our Science EOY revision on Chemistry, covering the following topics: 1) Atoms and Molecules – We revisited the terms such as proton number, mass number, ions, isotopes, as well as recalled how to write electronic configurations of elements and the chemical formula of compounds. 2) Ionic and Covalent Bondings – We revised the properties of ionic and covalent compounds and how to draw the dot cross diagrams of these compounds.