Question

What is the most reactive group on the periodic table?

Would it be the Alkali Metals or the Halogens?

Answer 1

The answer is both

Explanation:

Although a teacher may say one is more reactive than the others, the reality is that both are equally reactive

This is due in part to their outer valence shells. Both groups either need to gain or lose an electron, which is relatively easy, so they react more easily.