Question

why F2 bond is unstable than Cl2 and Br2??

Answer 1

Fluorine being a small atom cannot form stable bond with other fluorine atoms , because it leads to a unstable structure.

Cl and Br on the other hand are relatively bigger and hence the nucleus is far away from the outermost shell causing them to form stable bond with each other.

I HOPE IT HELPS YOU

MARK ME AS BRAINLIEST

Answer 2

$\mathbb{ HELLO!}$

Fluorine being a small atom cannot form stable bond with other fluorine atoms , because it leads to a unstable structure.

Cl and Br on the other hand are relatively bigger and hence the nucleus is far away from the outermost shell causing them to form stable bond with each other.