Chemistry 0.0 / 5 ? ChemistryGCSEAQA Created by: Olivia.MackieCreated on: 19-10-14 18:45 What are all substances made of? Atoms 1 of 5 How many elements are in the Periodic table? About 100 2 of 5 What are the relative electrical charges? Proton = +1, Electron = -1, neutron = 0 3 of 5 In an atom what are the number of protons equal to? The number of protons is equal to the number of elecrons 4 of 5 What is the number of protons called? The atomic number 5 of 5
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