Question

Why most active element in group 17 is Fluorine?

Answer 1

Fluorine:

• Fluorine is the most active element in Group 17's elements.
• Fluorine has a shorter distance between the nucleus and the outermost electrons because the nuclear pull is stronger on the outermost shells.
• Fluorine's reactivity is due to its extraordinarily high oxidizing power and low dissociation energy .
• The tendency of nonmetals to gain electrons determines their reactivity.
• The tendency to gain electrons decreases as we move down the group because the effective nuclear charge decreases as atomic size increases.
• Hence, Fluorine is most electronegative and thus is most reactive among halogens.