Property Metals Non-metals State of matter These are usually solid, except These exist in all the three mercury, which is a liquid at states. Bromine is the only room temperature. liquid. Density They usually have high density, Their densities are usually low. except for sodium, potassium, calcium etc. Melting point They usually have a high melting Their melting points are low. point except mercury, cesium, gallium, tin, lead. Boiling point Their boiling points are usually Their boiling points are low. high. Hardness They are usually hard, except They are usually not hard. But mercury, sodium, calcium, the exception is the non-metal potassium, lead etc. diamond, the hardest substance. Malleability They can be beaten into thin They are generally brittle. sheets. Ductility They can be drawn into thin They cannot be drawn into thin wires, except sodium, potassium, wires. calcium etc. Conduction of heat They are good conductors of They are poor conductors of heat. heat. Conduction of They are good conductors of They are non-conductors, electricity electricity. except for carbon in the form of graphite and the gas carbon. Shine Newly cut metals have high Usually not shiny, except iodine shine . Some get tarnished and diamond - the most lustrous immediately. of all the substances The periodic table Key Questions:
Property Metals Non-metals State of matter These are usually solid, except mercury, which is a liquid at room temperature. These exist in all the three states. Bromine is the only liquid. Density They usually have high density, except for sodium, potassium, calcium etc. Their densities are usually low. Melting point They usually have a high melting point except mercury, cesium, gallium, tin, lead. Their melting points are low. Boiling point Their boiling points are usually high. Their boiling points are low. Hardness They are usually hard, except mercury, sodium, calcium, potassium, lead etc. They are usually not hard. But the exception is the non-metal diamond, the hardest substance. Malleability They can be beaten into thin sheets. They are generally brittle. Ductility They can be drawn into thin wires, except sodium, potassium, calcium etc. They cannot be drawn into thin wires. Conduction of heat They are good conductors of heat. They are poor conductors of heat. Conduction of electricity They are good conductors of electricity. They are non-conductors, except for carbon in the form of graphite and the gas carbon. Shine Newly cut metals have high shine . Some get tarnished immediately. Usually not shiny, except iodine and diamond - the most lustrous of all the substances The periodic table Key Questions:
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