Bonding and structures 0.0 / 5 ? ScienceChemistryGCSEAQA Created by: benkelly123Created on: 06-10-18 13:33 3 states? Solid, Liquid and Gas 1 of 13 Stages of transition? Solid = melting =liquid = boiling = gas Gas = condensing = Liquid = freezing = Solid 2 of 13 Temperature effecting State? Less melting melting point = Solid Between melting+boiling = Liquid More boiling point = Gas 3 of 13 Form ion? Atoms loose or gain electrons to obtain full outer shell 4 of 13 Metal example? Sodium atom (2,8,1) = Sodium ion (2,8) = Looses electron 5 of 13 Non-metal example? Oxygen atom (2,6) = Oxide ion (2,8) = Gains 2 electrons 6 of 13 Ionic bonds? - Ionic - Compound - Metallic / Attraction between oppositely charged ions 7 of 13 Ionic bond example? LiF / Li = looses 1 electron = + F = gains 1 electron = - 8 of 13 Drop and swap method? Magnesium Fluoride = Mg 2+ F-1 ----> MgF2 / Aluminium Chloride = Al 3+ Cl -1 ----> AlCl 3 9 of 13 How are ionic bonds held together? By strong electrostatic forces of attraction oppositely charged ions 10 of 13 Properties of ionic compounds? -Giant ionic lattice - high melting / boiling points - higher charge = stronger force + more energy 11 of 13 Conducting electricity of substances + compound? Substance = has charged particles / free to move Ionic compound = melted + dissolved in aqua solution 12 of 13 Covalent bonding? ONLY non-metals , 2 atoms share pair electrons 13 of 13
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