Atomic Structure 0.0 / 5 ? ChemistryAtomsGCSEAll boards Created by: clareh8Created on: 29-09-18 13:37 What are the four separation techniques? Filtration - Crystallisation - Distillation - Chromatography 1 of 13 What does Filtration do? Gets an insoluble solid from a liquid 2 of 13 What does Crystallisation do? Gets a soluble solid from a liquid by evaporating liquid off. 3 of 13 What does Distillation do? Gets a pure liquid from a mixture of liquids 4 of 13 What does Chromatography do? It separates mixtures of coloured compounds 5 of 13 What are Electron Energy Levels? These are where electrons are found. The shells can each hold a maximum electrons of 2,8,8,... 6 of 13 What is the periodic table? The periodic table is a list of all the elements in order or atomic number. The columns are called groups and the rows are called periods. 7 of 13 What is conservation of mass. In a chemical reaction the total mass of reactants = total mass of products 8 of 13 Mass Number Number of neutrons + protons (top + bottom) 9 of 13 Atomic Number Number of protons (bottom number) 10 of 13 What is an isotope? Same number of protons, different number of neutrons 11 of 13 Ion Atom where number of protons is not equal to electrons 12 of 13 Plum pudding atom model Early model - ball of positive charge with electrons in it. 13 of 13
Comments
No comments have yet been made