The first thing to do is to review your understanding of the structure of the atom. This content can be asked on either Chemistry or Physics paper 1.
Review and Rate your Understanding
Have you learnt all the facts on the 100% sheet?
Have you completed the BBC Bitesize tutorial?
Have you been able to complete all the questions on the 100% sheet?
Let us know how you feel about this topic in the comments section below. Any questions you have, just ask.