Question

Why is bromine more electronegative than iodine?​

Answer 1

Bromine is more electronegative than iodine due to its smaller atomic size and higher effective nuclear charge.

Step-by-step explanation:

Bromine is more electronegative than iodine due to its smaller atomic size and higher effective nuclear charge, which results in a stronger pull on electrons in a chemical bond.

Additionally, the electronegativity of an element increases as you move across a period in the periodic table. Bromine is located before iodine in Group 17, which means it has a higher electronegativity than iodine.

For example, when bromine reacts with sodium to form sodium bromide (NaBr), bromine attracts the valence electron of sodium more strongly than iodine would, resulting in a more polar and electronegative bond.

Answer 2

Accordingly the order of electronegativity of the given elements would be: Fluorine > Chlorine > Bromine > Iodine. ( Fluorine has the highest electronegativity.)