The Properties of Metals Element Conducts heat Melting point (°C) Cost pure (£/g) Other properties aluminium yes 660 9.9 protective layer lead yes 327 1.6 poisonous silver yes 961 75.6 shiny gallium yes 30 3.2 poisonous sodium yes 98 15.8 very reactive iron yes 1535 4.5 rusts copper yes 1083 6.2 non-toxic mercury Yes - 32 4.4 poisonous Melting Point Cost Boiling Point Poisonous Properties Keyword ideas Solid Liquid Particles Temperature Speed Heat Hot Space Cold Expensive Gas Increase Decrease Cheap Reactive If you can think of your own keywords, be sure to use them! Element true/false Decide whether each of the statements is true or false. a) Copper conducts heat well. b) Sodium does not react easily. c) All metals have high melting points. e) Minus 200°C is hotter than minus 2°C Types of metal: 1. On the table, how many types of each metal are there? _____ alkali metals, _____ earth metals, _____ transition metals. Conductor Uses of Metals 1. Which metal has the highest melting point? Give the name, symbol and temperature: _______________________________________________________________________________________ 2. Which metal has the lowest melting point? Give the name, symbol and temperature: _______________________________________________________________________________________ 3. Would Gallium make a good saucepan? Give reasons why: _______________________________________________________________________________________ _______________________________________________________________________________________ _______________________________________________________________________________________ 4. Would sodium make a good kettle? Give reasons why: _______________________________________________________________________________________ _______________________________________________________________________________________ _______________________________________________________________________________________ 5. Draw mercury particles at room temperature (25°C): Label your diagram