What are the Physical properties of metals with definition and examples
Answers
Important physical property of metals
⇒Physical State : All the metal except mercury exist in solid state at room temperature.
⇒Lusture : All the metal have shiny appearance. This shiny appearance is known as metallic lusture , so metal are used for making jewellery and decorations.
⇒Malleability : The property of beating a metal with hammer into sheet is called malleability . Gold and sliver are most malleable metals.
⇒Ductility : The property that allow the metal to be drawn into thin wire is called ductility . Gold and silver are the most ductile metal , copper and aluminium wires are used in electric fittings.
⇒Conductivity : Metals are good conductor of heat and electricity . They quickly transmit heat from one end to another. Silver is the best conductor followed by gold , copper and aluminium . Lead (pb) is the poorest conductor of heat.
⇒Hardness : Metals are usually hard. It is therefore, difficult to cut them but sodium , potassium and magnesium are soft metals and thus are easily cut with the help of knife.
⇒Melting and boiling points : Metals generally have high melting points and boiling point but sodium and potassium metals have low melting and boiling points.
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Answer:
1) have a shining surface.
2) metal are generally hard.
3) metal can be beaten into thin sheet. this property is called malleability.
4) metals to be drawn into thin wires is called ductility.
5) metals are good conductors of heats and electricity.
6) the metals that produce a sound on striking a hard surface are said to be sonorous.