Question

Give two reasons why ${\mathbf{F}}_{\mathbf{2}}$ is the most reactive of the halogens.

Short answer

${\mathrm{F}}_2$is most reactive because of Electronegativity and weak F-F bond.

Step-by-step solution

Define Reactivity

The relative capacity of identity to undergo a chemical reaction with another atom, molecule, or compound.

Reasoning why F2 is the most reactive of halogens

It is ageneral rule, fluorine is the most reactive halogen, and astatine is the least reactive.

As it is the most electronegative, fluorine is the most reactive.

The enormous electron-electron repulsions in the compact fluorine atom give fluorine high electro negativity.

This electron-electron repulsion is also responsible for the weakness of the F-F bond in${\mathrm{F}}_2$.

Therefore,${\mathrm{F}}_2$ is most reactive due to Electronegativity and weak F-F bond.