IGCSE›Cambridge IGCSE Chemistry›Mind mapsProperties of MetalsCambridge IGCSE Chemistry: Mind mapStudy pack PDFAlso for this subtopic:Revision notesFlashcardsSubtopic testCover factsPhysical propertiesGood thermal and electrical conductorsMalleable: hammered into sheetsDuctile: stretched into wiresMostly high melting and boiling pointsShiny, dense solidsWhy and versusDelocalised electrons move freelyNon-metals are insulatorsNon-metals are brittle and shatterUse comparative words such as whereasWith acidMetal + acid → salt + hydrogenZn+2 HCl→ZnClX2+HX2\ce{Zn + 2HCl -> ZnCl2 + H2}Zn+2HClZnClX2+HX2Hydrogen gives a pop with a lit splintReactivity: Mg > Zn > Fe > CuMetalsphysical and chemicalMgFeCuZnWith oxygenMetal + oxygen → metal oxide2 Mg+OX2→2 MgO\ce{2Mg + O2 -> 2MgO}2Mg+OX22MgOMagnesium burns with a white flameCopper turns black when heatedWith water2 Na+2 HX2O→2 NaOH+HX2\ce{2Na + 2H2O -> 2NaOH + H2}2Na+2HX2O2NaOH+HX2Sodium reacts vigorously with cold waterMagnesium reacts with steam to give MgOZinc, iron and copper: no reaction with cold waterExam tipsFormula is MgO, not MgO2_22Balance every equation and check hydrogenName the property and explain it