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An atom is made up of electrons, protons and neutrons. Electrons have a negative charge (-1), protons have a postive charge (+1) and neutrons have a neutral charge.

Atoms must have a neut...

Carbon can be found in different forms, with different structures and bonding.

Graphite is a structure in which each carbon atom is bonded to three other carbon atoms, to...

Both aldehydes and ketones contain a double bond between carbon and oxygen.

Aldehydes have the double bond at the end of the molecule. T...

Polymers are large molecules made from lots of repeating units called monomers.

Plastic bags, waterproof coatings on clothes and wound dressings can all be made from poly...

Both alkanes and alkenes are hydrocarbons, which means they only contain carbon and hydrogen atoms.

Alkanes are saturated hydrocarbo...