Metals! 0.0 / 5 ? ChemistryHow structure influences the properties and uses os substancesGCSEAQA Created by: michi_99xCreated on: 12-03-16 13:23 Name 3 metal properties shiny, ductile and malleable 1 of 21 Why are metals solid at room temp.? Solids are arranged in a regular arrangement and have strong attractions 2 of 21 Why are metals good conductors of electricity? Delocalised electrons, have gained kinetic energy, so it's free for them to move 3 of 21 How are metals malleable? They are strong and can be hammered into shape. Their electrons can slide over the layers. 4 of 21 Why do metals have high bp and mp? Because they have a strong electrostatic force of attraction, where the delocalised electrons from the outer shells forms a sea of electrons. 5 of 21 Why are metals strong? Their layers can slide over easily, they have delocalised electrons are free to move and they a strong attraction 6 of 21 What metal isn't a solid at room temp.? Mercury 7 of 21 What is metallic bonding? The attraction between oppositely charged particles 8 of 21 How are alloys different to pure metals? they have an irregular pattern, can't slide over layers,different metals formed together(distorted) 9 of 21 Are alkali metals reactive? Yes 10 of 21 What substance is used to stop the alkali metals to react with oxygen and moisture in the air? oil 11 of 21 What is it called when an alkali reacts with water? An alkaline solution 12 of 21 What is the reactivity of alkali metals? It increases 13 of 21 Which alkali metal is the most reactive? Caesium 14 of 21 What other substance does it form when it reacts with water? Hydrogen 15 of 21 Which metal form a lilac colour? Potassium 16 of 21 What group is the halogens in? Group 7 17 of 21 What is their structure and bonding? They are covalent bonds and they are diatomic molecules 18 of 21 Name the first three colours of an halogen Fl: pale colour Cl: pale yellow Br: brown 19 of 21 Which 2 halogens are gases? Fl + Cl 20 of 21 What is their reactivity trend? They decrease 21 of 21
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