Edexcel OLevel Chemistry revision notes

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Lesson

Lesson-7.1.4- explain the trend in reactivity in Group 7 in terms of electronic configurations.

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Lesson-7.1.3- understand how displacement reactions involving halogens and halides provide evidence for the trend in reactivity in Group 7.Previous Lesson-8.1.1- know the approximate percentages by volume of the four most abundant gases in dry air.Next