Question

What is the most active element in $\mathrm{group}-17$?

Answer 1

Group-17

• $\mathrm{Group}-17$ elements are also known as ‘Halogens’. Where halo means ‘salt’ and gens means ‘former’. i.e., they are salt formers.
• $\mathrm{Group}-17$ elements are one of the most reactive non-metals in the modern periodic table.
• Because Fluorine $\left(\mathrm{F}\right)$ is extremely small in size, it has the highest electronegativity and it is the most reactive non-metal of $\mathrm{group}-17.$