The periodic table

Group 1

Trends in group 1 metals What trends do you see as you go down the group? What do the metals all have in common? What other properties would you expect the elements in group 1 to have as they are all metals?

Group 7 – the halogens The elements in group 7 of the periodic table, on the right, are called the halogens. I Br Cl F At fluorine chlorine bromine iodine astatine

Halogens – what do they look like? Chlorine Bromine Iodine

Halogen vapours Bromine and iodine are not gaseous, but have low boiling points. This means that they produce vapour at relatively low temperature. They are volatile. Photo credit: Dr John Mileham Bromine produces some red-brown vapour, seen here above the liquid bromine in the jar. When iodine is heated gently, it changes directly from a solid to a gas without first becoming a liquid. This is called sublimation.

Iodine fingerprints

Reactions of the group 7 elements Br Cl F At fluorine chlorine bromine iodine astatine

Watch the video You will be asked to put the halogens in order of reactivity

Halogens Chlorine Iodine Bromine Fluorine

Group 0 This is also called group 8 How are group 8 elements different to group 1 or 7?