chemistry paper 1 4.5 / 5 based on 4 ratings ? ChemistryAtoms and compoundsAtomsThe Periodic TableGCSEAQA Created by: 13hartleyrCreated on: 06-12-17 14:07 what does an element contain? one type of atom 1 of 13 what do compounds contain? atoms of two or more elements that are chemical combined in fixed proportians 2 of 13 what does a mixture consist of? two or more elements or compounds that are not chemically joined 3 of 13 what is filtration used for? to separate soluble solids from insoluble solids 4 of 13 what is crystilation used for? to obtain a soluble solid from a solution 5 of 13 what is simple distillation used for? to obtain a solvent from a solution 6 of 13 what is fractional distillation used for? to separate mixtures in which the components have different boiling points 7 of 13 what is chromatography used for? to separate the different soluble, colored components of a mixture 8 of 13 what is an isotope? elements that have the same number of protons but a different number of neutrons 9 of 13 what is group 0 of the periodic table known as? the noble gasses 10 of 13 what is group 1 of the periodic table known as? the alkali metals 11 of 13 what is group 7 of the periodic table known as? the halogens 12 of 13 what are the elements in the center of the periodic table known as? the transition metals 13 of 13
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