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2,8,8,1

These are the group one elements on the periodic table. They are highly reactive so are stored under oil. When they react with water it is often a violent reaction. It also turns to water alkaline, hence ...

Group 1 metals all have one outer electron, which is responisble for their properties. As you go down the group:

• the metals become more reactive. This is due to the increased number of electr...

(drawing of the two) There are three main ways that we can tell the correct structure of benzene consists of a delocalised ring. They are:

• the delocalised structure is more stable that the pr...

Atomic radius increases down a group in the periodic table. This can be explained by a phenomenon called electron shielding. As the number of electron shells is increased down the group, the attraction be...