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 nonmetals 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 nonmetals 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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