chemistry 0.0 / 5 ? ChemistryAtomsGCSEAQA Created by: carlywittenCreated on: 24-09-19 15:41 Alloy Mixture of two or more elements at least one is metal 1 of 11 Atomic number The number of protons in an atom (proton number) 2 of 11 Avagadro The number of atom,molecules or ions in a mole of any substance 3 of 11 biodegradable Can be broken down by microorganisms 4 of 11 Catalyst A substance that speeds up the chemical reaction 5 of 11 Cathode The negative electrode in electrolysis 6 of 11 Continuous data Data that can take any value 7 of 11 Covalent bond The bond between two atoms that share one or more pairs of electrons 8 of 11 Electrolysis The breakdown of a substance containing ions by electricity 9 of 11 Endothermic A reaction that takes in energy 10 of 11 Exothermic A reaction that lets out energy 11 of 11
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