Some properties are listed in the following table. Distinguish between metals and non-metals on the basis of these properties.

Properties	Metals	Non-metals
1. Appearance
2. Hardness
3. Malleability
4. Ductility
5. Heat Conduction
6. Conduction of Electricity

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Properties	Metals	Non-metals
1. Appearance	have metallic lustre	dull
2. Hardness	hard	soft
3. Malleability	malleable	non-malleable
4. Ductility	ductile	non-ductile
5. Heat Conduction	good conductors	bad conductors
6. Conduction of Electricity	good conductors	bad conductors/insulators

1. The density of metals is usually high.
2. Metals are malleable and ductile.
3. Metals form an alloy with other metals or non-metals.
4. Some metals react with air and corrode. For e.g. Iron.
5. Metals are good conductors of heat and electricity. Lead is an exception.
6. Generally, metals are in a solid-state at room temperature. Except for Mercury. Mercury is in a liquid state.
7. Many metals produce metal oxide by burning in the oxygen of the air. Highly reactive metals react violently when they’re burnt in oxygen.
8. Metals like sodium and potassium are stored in oil as they react with air in seconds. They’re highly reactive metals.
9. Less reactive metals like gold, silver, platinum, etc do not tarnish easily. They stay shiny and lustrous.
10. Metals produce metal oxide and hydrogen gas while reacting with water.]