2.29 understand that metals can be arranged in a reactivity series based on the reactions of the metals and their compounds: potassium, sodium, lithium, calcium, magnesium, aluminium, zinc, iron, copper, silver and gold

The 'reactivity series' lists metals in order of their reactivity with other substances. The most reactive is at the top, while the least reactive is at the bottom. This is the order...

Potassium

Sodium

Lithium

Calcium

Magnesium

Aluminium

Zinc

Iron

Copper

Silver

Gold

KEY:

Super reactive

Fairly reactive

A little bit reactive

Not really at all reactive (basically inert)

NOTE: we need to learn this :( The best way is with an mnemonic. I use Peter.Says.Lions.Cats.Mice.And.Zebras.In.Cages.Suffer.Greatly but if you have another please comment!