Question

Arrange the halogens in the order of decreasing electronegativity.

Answer 1

1. Halogens are arranged in the order of decreasing electronegativity as Fluorine (F) > Chlorine (Cl) > Bromine (Br) > Iodine (I).
2. Fluorine is the most electronegative due to its small atomic size and high effective nuclear charge.
3. Electronegativity decreases down the group as atomic size increases and effective nuclear charge decreases.
4. This trend shows that fluorine strongly attracts electrons, followed by chlorine, bromine, and iodine with the least electronegativity.