HALOGENS

MEMBERS

• Flourine
• Chlorine
• Bromine
• Iodine
• Astatine

CHEMICAL PROPERTIES
Electronegativity is the ability of an atom to attract electrons density towards itself within a covalent bond.

PHYSICAL PROPERTIES
Atoms get bigger down the group as additional electron shells are filled. When fluorine exists as a diatomic molecule, the F-F bond is unexpectedly weak. This is because fluorine atoms are the smallest of the halogens-the atoms are bonded close together, which leads to repulsion between free electrons in the two flouri neighbors atoms.

INTERESTING FACTS

FOUND IN

USES

• Flouride is in public water
• Iodine is used in hospitals