The Halogens

Halogens are hazardous to human life, yet they can also be very useful. How do they react when they meet other elements?

Chemistry - Periodic Table - Learning Points.

The halogens are the elements in Group 7 of the periodic table.

The halogens are non-metals and are very reactive.

The melting and boiling points of the halogens increase down the group.

The reactivity of the halogens decreases down the group.
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