GCSE-Chemistry-Atoms, Elements, Compounds and Mixtures 0.0 / 5 ? ChemistryAtoms and compoundselements and mixturesGCSEAQA Created by: liajean258Created on: 16-12-21 19:03 A substance formed by the chemical union of two or more elements. COMPOUND 1 of 11 Electrically charged particle, formed when an atom or molecule gains or loses electrons. ION 2 of 11 Which element has the chemical formula Na? SODIUM 3 of 11 A collection of two or more atoms held together by chemical bonds. MOLECULE 4 of 11 A substance made of one type of atom only. ELEMENT 5 of 11 What is the proton number of Magnesium? 12 6 of 11 The smallest part of an element that can exist. ATOM 7 of 11 What group on the periodic table is chlorine in 7 8 of 11 When a negative ion joins with a positive ion IONIC COMPOUND 9 of 11 Two or more substances that are not joined together. The substances can be elements, compounds, or both. MIXTURE 10 of 11 Which element has the chemical formula K? POTASSIUM 11 of 11
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