chemistry structure and properties 0.0 / 5 ? Chemistrystructure and propertiesGCSEAQA Created by: MARLABICreated on: 28-03-18 11:03 what are compounds? substances in which are 2 or more elements are chemically combined 1 of 12 what are ionic bonds formed from? Metals and non Metals 2 of 12 what do metals lose and form? They lose electrons and form positive ions 3 of 12 non metals gain x and form? They gain electrons and form negative ions? 4 of 12 what structure do ionic compounds have? giant lattice structure 5 of 12 Do ionic compounds have a high melting point or low melting point and why? They have a high melting point as the electrostatic attraction is strong 6 of 12 Do ionic compounds conduct as a solid? No as they are not free to move 7 of 12 ionic compounds conduc electricity when molten or in solution why? ions are free to move and carry the current 8 of 12 Metals are layers of positive ions surrounded by? Free delocalised electrons 9 of 12 Why can ions slide over each other? so that the metals can be hammered into shape 10 of 12 What can metals conduct? Electricity and heat 11 of 12 what are alloys usually made from 2 or more metals the different size atoms distort the layers stopping them from rolling over each other making the alloy stronger 12 of 12
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