Chemistry Unit 1 0.0 / 5 ? ChemistryChemical Changes and StructureOtherSQA Created by: ellerevisionCreated on: 09-12-15 23:05 Name the 1 factors that can affect a chemical reaction? Catalyst 1 of 10 How do you work out the rate of a reaction? change in volume or mass divided by change in time 2 of 10 What is the charge of an Electron? Negative 3 of 10 What is the Mass of a Neutron and Proton? 1 4 of 10 Location of the Electron? Energy level 5 of 10 Is an atom neutral? True or False True 6 of 10 Why is there an equal amount of protons and electrons? because atoms are neutral so it must have an equal amount of each other so they cancel out the charges 7 of 10 The mass number is an equal amount to the....... Amount of protons 8 of 10 If the Mass number of sodium is 23 and the atomic number is 11, how many neutrons are there? 12 9 of 10 What is an Isotope? Isotopes are atoms with the same chemical formula but different chemical structure 10 of 10
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