AQA Fundamental Ideas New 2011 GCSE Syllabus - AQA Core Science GCSE, Unit 1, Topic 1 - Fundamental Ideas 2.0 / 5 based on 1 rating ? ChemistryAcids, bases and saltsGCSEAll boards Created by: TabbieCreated on: 15-01-12 17:48 There are about 100 different known elements The symbols in the periodic table represent atoms Elements have very different properties The elements are all arranged in different groups Elements to the left of the bold line are metals Elements to the right of the bold line are non-metals - gases Atoms are made up of mostly empty space And contain protons, neutrons and electrons Compounds contain more than one atom, bonded together. 1 of 2 In the middle of an atom, there is a nucleus The nucleus contains protons (+1 charge) and neutrons (0 charge) A third type of particle orbits the nucleus - electrons (-1 charge) Any atom contains the same number of protons as electrons, so there is no charge 2 of 2
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