Halogen reactivity

Question 1

Why does reactivity decrease as you go down group 7?

Answer 1

Because the outer shell’s electrons are further away from the nuclear so it will be easier to gain or lose an electron

Question 2

What will happen with halogens if there is a more reactive one in the compound?

Answer 2

The more reactive halogen will push the less reactive halogen out a compound

Question 3

Example:
Cl² + 2NaBr —> Br² + 2NaCl

Now write the word equation for this reaction…

Answer 3

Chlorine + Sodium Bromine —> Bromine + Sodium Chloride