In this episode, we will discuss halogens.

Halogens, also known as Group 7 elements, possess seven outer electrons which makes them highly reactive as they readily gain one electron to achieve a stable full outer shell.

In their elemental state, halogens exist as diatomic molecules. They commonly form salts when reacting with metals by accepting an electron.

A key trend within the group is that reactivity decreases as you move down the periodic table due to increasing atomic size and reduced nuclear attraction for an additional electron.

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