Module C4 3.0 / 5 based on 2 ratings ? ChemistryGCSEOCR Created by: JessCreated on: 11-01-13 09:45 Particle with a neutral charge Neutron 1 of 20 Something that moves around the nucleus in shells Electrons 2 of 20 Different forms of the same elements Isotopes 3 of 20 How many electrons fit in the 3rd shell? Eight 4 of 20 Bonding which shares electrons Covalent 5 of 20 Group 1 metals Alkali 6 of 20 Loss of electrons Oxidation 7 of 20 Group 7 Elements Halogens 8 of 20 What is the total number of protons and neutrons called? Mass number 9 of 20 Metals in the middle of the periodic table? Transition metals 10 of 20 Breaking down with heat Thermal decomposition 11 of 20 A solid forms in a solution Precipitation 12 of 20 First step of water purification Filtration 13 of 20 Second step of water purification Sedimentation 14 of 20 Third step of water purification Chlorination 15 of 20 Example of tap water impurity Lead compounds 16 of 20 Test for Sulfate Ions uses... Barium Chloride 17 of 20 Test for Halide Ions uses... Silver nitrate 18 of 20 Colour of chloride Ions precipitate White 19 of 20 Colour of Bromide Ions precipitate Cream 20 of 20
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