Documents A Level aqa Chemistry Unit 1 Notes

THE MOLE Since atoms are so small, any sensible laboratory quantity of substance must contain a huge number of atoms: 1 litre of water contains 3.3 x 1025 molecules. 1 gram…

Documents All of the elements on the periodic table make up everything in our world!

All of the elements on the periodic table make up everything in our world! The periodic table consisting of most of the known elements was developed by a Russian man called…