Question

observe the periodic table and explain the gradation in reactivity of helogen family​

Answer 1

Explanation:

halogen family means 17th group

In this group lies most reactive element Cl and most electronegative element F

Answer 2

Answer:

as one moves down the group the reactivity of halogens decreases F is the most reactive and At is the least reactive. an easy way to remember the order of halogens is Father Called Brother IdiAt mark as brainliest follow me