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In order for a reaction to take place molecules must collide with enough energy, which is known as the activation energy. Therefore when you heat a reaction mixture the heat energy is converted into the k...

diagram of the covalent structure of diamond- allotrope Each carbon has 4 covalent bonds- what are covalent bonds? these are when two atoms share a pair of electrons. These are very strong bonds, causing ...

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...