Additional Science Videos for Biology Unit 2

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Structures and Bonding

Ionic Bonding

8:07

This video gives a description of how ionic compounds are formed and the way they react to make the ionic bond. There is also a description of how group 1 metals react with group 7 elements and also how ions combine to give you the formula of the compound produced.

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Isotopes

5.49

This video describes the similarities and differences between isotopes of the same element. This comes up in P2 as well and forms the foundation of harder parts of the Additional Science course. But, don't worry, after watching this video you should know it.

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Molecules

4:50

This video goes through some of the important molecules that you need to know for your AQA GCSE Chemistry exam. These molecules are mentioned specifically in the specification so you should know them thoroughly.

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