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Topic 8: The Periodic Table
4 subtopics · Groups, periods, trends and element families
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8.1
Arrangement of Elements
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Periods and groups, proton number order, metals and non-metals, predicting properties from position
8.2
Group I Properties
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Alkali metals: physical properties, reaction with water, trends down the group and their explanation
8.3
Group VII Properties
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Halogens: colours and states, diatomic molecules, trends down the group, displacement reactions
8.4
Transition Elements & Noble Gases
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Variable oxidation number, coloured compounds, catalysts; full outer shells and noble gas uses