Question

give reason:
1. fluorine is more reactive than chlorine.
2. neon has zero valency.
3.magnesium is a metal

Answer 1

1)becoz it it more electronegative than chlorine which forms a stronger acid than chlorine.

2)becoz the valence shell is complete by the octlet rule.

3)becoz it gives away electrons and highly electropositive.

Answer 2

fluorine more reactive because fluorine and chlorine belong to the same group , so in the group the chemical reactivity decreases top to bottom.