List down the metals reactivity series, from most reactive metal to the least reactive metal.

Potassium, (most reactive)
Sodium,
Calcium,
Magnesium,
Aluminium,
(Carbon),
Zinc,
Iron,
Tin,
Lead,
(Hydrogen),
Copper,
Silver,
Gold,
Platinium (least reactive)

Use this mnemonic to help u remember.
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