Chemistry topic 1 0.0 / 5 ? ChemistryAtomic structure and the periodic tableGCSEAQA Created by: gracie9703Created on: 23-04-19 18:14 What is the relative mass of a proton? 1 1 of 15 What is the charge of a proton? +1 2 of 15 What is the relative mass of a neutron? 1 3 of 15 What is the charge of a neutron? 0 4 of 15 What is the relative mass of an electron? Very small (zero) 5 of 15 What is the charge of an electron? -1 6 of 15 What is the mass number of an atom? Protons and neutrons 7 of 15 What is the atomic number of an atom? Protons 8 of 15 What is an isotope? A different form of the same element 9 of 15 What is the formula for calculating relative atomic mass? sum of (isotope abundance x isotope mass number)/sum of abundances of all the isotopes 10 of 15 What is filtration? It separates insoluble solids from liquids 11 of 15 What is evaporation? When a solution is heated and you are left with a solid 12 of 15 What is crystallisation? When a solution is heated to form crystals 13 of 15 What is simple distillation used for? To separate out solutions 14 of 15 What is fractional distillation used for? To separate a mixture of liquids 15 of 15
Comments
No comments have yet been made