Chemistry GCSE Covering atoms, alkali metals and halogens 4.5 / 5 based on 5 ratings ? ChemistryAtoms and compoundsGCSEAll boards Created by: HannahCreated on: 10-04-11 16:42 Atoms of different elements have... Different numbers of protons 1 of 13 What is the charge of an atom? An atom has no overall charge 2 of 13 What does the atomic number represent? The number of protons in an atom 3 of 13 What does the relative atomic mass number represent? The number of particles in an atom's nucleus 4 of 13 What is the maximum number of electrons that occupy the first four energy levels in the first 20 elements? 2,8,8,2 5 of 13 What do group numbers (on a periodic table) represent? The number of electrons that occupy the outermost energy level 6 of 13 Define 'intermolecular forces' Forces between different molecules 7 of 13 What is the name given to elements in Group 7? Halogens 8 of 13 What is a 'mixture'? Substance that contains two or more elements or compounds that are not chemically combined 9 of 13 What are compounds? Substances where two or more elements are chemically combined 10 of 13 Covalent bonds form when.... Atoms share electrons 11 of 13 What is the name given to elements in Group 1? Alkali Metals 12 of 13 What are atoms? The structure of an element 13 of 13
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