Explain why potassium is more reactive than lithium and chlorine less reactive than fluorine.

Write the electronic structures of the atoms of (a) potassium (b) lithium (c) fluorine and (d) chlorine. Use these eletronic structures to exlpain why potassium is more reactive than lithium, and fluorine more reactive than chlorine.

Explain why sodium is less reactive than potassium.

Explain why is sodium less reactive than potassium.

Lead is more reactive than iron.

Explain why : ICl is more reactive than I_(2) ?

Why phosphorus is more reactive than nitrogen?

Copper is more reactive than iron.