The Periodic Table- GROUP 7

The Periodic Table-

GROUP 7!!!

• The halogens
• As you move down the group, the halogens become less reactive...it's harder to gain an extra electron, because the outer shell is FURTHER from the nucleus
• They also have HIGHER MELTING POINTS
• And finally HIGHER BOILING POINTS

THE HALOGENS ARE ALL NON- METALS WITH COLOURED VAPOURS

Flourine is a very reactive, poisonous yellow gas

Chlorine is a fairly reactive, poisonous dense green gas

Bromine is…