# Properties of groups 1, 2, 17 and 18

> This section is the chemistry of four landmark groups: group 1 (alkali metals), group 2 (alkaline earth metals), group 17 (halogens), and group 18 (noble gases). Here you learn names, valence, ion…

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## Full notes

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## More in The periodic table

- [Structure and trends of the periodic table](https://www.hlayiso.com/grade-10/physical-sciences/notes/the-periodic-table/structure-and-trends-of-the-periodic-table) — Previous section
- [All The periodic table sections](https://www.hlayiso.com/grade-10/physical-sciences/notes/the-periodic-table)

## Frequently asked questions

### What will I learn in "Properties of groups 1, 2, 17 and 18"?

This section covers Properties of groups 1, 2, 17 and 18 as part of The periodic table in Grade 10 Physical Sciences. You'll find clear explanations, worked examples, and key definitions aligned to the CAPS curriculum.

### Is this section aligned with the CAPS curriculum?

Yes. All notes on Hlayiso, including "Properties of groups 1, 2, 17 and 18", are written against the official CAPS curriculum and ATP for Grade 10 Physical Sciences.

### What should I study after "Properties of groups 1, 2, 17 and 18"?

Continue with the next section in The periodic table, or test your understanding with the interactive quiz linked to this section.

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