ATOMIC STRUCTURE

=Atomic Structure= [image:http://i.imgur.com/tcIjVAs.png?1] Atoms are made up of tiny parts known as '''sub-atomic particles'''. In the centre of an atom is a '''nucleus''' made up of '''protons''' (positively charged) and '''neutrons''' (no charge). Outside the nucleus is a cloud of tiny '''electrons''' (negatively charged) that are much smaller than any of the other sub-atomic particles. The atom here is not drawn to scale. This is because '''an atom is actually mostly empty space'''. If the nucleus was the size of a basketball, the closest electron would be about 10km away and it would only be as big as a spec of dust! [image:http://i.imgur.com/qfUBKig.png]