Metals Properties of metals (Usual) Physical properties: -High melting points (except mercury) -Malleable and ductile -Good conductors of heat – because of their free electrons -Good conductors of electricity – because of their free electrons -Have high densities...
Reactivity series K - Potassium Na - Sodium Ca – Calcium Mg – Magnesium Al – Aluminium C – Carbon Zn – Zinc Fe – Iron Pb – Lead H – Hydrogen Cu – Copper Ag – Silver Au – Gold Everything above Hydrogen can displace hydrogen from its acid, and hydrogen cannot reduce...
(a) Extraction of metals -The most unreactive metals like copper and gold exist in their ores as elements. All that needs to be done is remove sand or soil and other impurities. They can be washed off, and no chemical reaction is needed. -More reactive metals exist in...