Halogens are hazardous to human life, yet they can also be very useful. How do they react when they meet other elements?
- 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.
The elements in group 7 of the periodic table are called the halogens.
They include fluorine, chlorine, bromine, iodine and astatine.
They're all non-metals and are vigorously reactive.
This is due to their seven outer shell electrons – just one short of a full shell – giving them a strong tendency to ...
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