Properties of Metals and Non-Metals

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Properties:

 

Metals:Non-metals:
StrongBrittle
Malleable and ductileBrittle
React with oxygen to form basic oxidesReact with oxygen to form acidic oxides
SonorousDull sound when hit with hammer
High melting and boiling pointsLow melting and boiling points
Good conductors of electricityPoor conductors of electricity
Good conductors of heatPoor conductors of heat
Mainly solids at room temp. Exception mercury - liquid at room temp.Solids, liquids and gases at room.temp.
Shiny when polishedDull looking
When they form ions, the ions are positiveWhen they form ions, the ions are negative - except hydrogen that forms a positive ion, H+.
High densityLow density

 

Common Metals and Non-Metals

 

Metals:Non-metals:
CalciumSulphur
PotassiumOxygen
LeadChlorine
CopperHydrogen
AluminiumBromine
ZincNitrogen
LithiumHelium

 

Metals

The uses of metals are related to their properties:

They are made into jewellery due to their hard and shiny appearance.

They are used to make pans, since they are good conductors of heat.

They are used in electrical cables, because they are malleable, ductile and good conductors of electricity.

They are strong so used to build scaffolding and bridges.

They make a ringing sound, sonorous, hence their use in bell making.

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Non-metals

Used as insulating material around wire cables since they do not conduct electricity.

Used to make pan handles as they are poor conductors of heat.

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