PHYSICAL PROPERTIES OF METALS

METALS IN PERIODIC TABLE..

METALS

METALS HAVE MANY PHYSICAL PROPERTIES Malleability Ductility Hardness Metallic lustre Thermal conductors Electrical conductors Sonority

MALLEABILITY Metals can be beaten into thin sheets

by hammering

GOLD IS THE MOST MALLEABLE METAL…

One gram of gold can be beaten into sheets with an area of about 6.7 sq.ft

DUCTILITY Metals can be drawn into thin fine wires

The filament of electric bulb made of fine wires of tungsten

Platinum is the most ductile metal

Copper gold etc also used as thin wires..

One gram of gold can be drawn into a wire of about 2km in length

HARDNESS.. Hardness is another property of metals However there are quite a few metals

which are soft..SodiumLithiumGallium CesiumPottasium

METTALLIC LUSTRE The surface of newly formed when

metals are cut ,has shining appearance

THERMAL CONDUCTIVITY The ability to conduct heat is an

important property of metals

Silver is the best thermal conductor among metals

Aluminium ,copper etc also possess comparatively high thermal conductivity

ELECTRICAL CONDUCTIVITY The ability of metals to let electricity

pass through it

SONORITY The ability of metals to produce sound

when tapped with a hard material

METALS CAN BE USED FOR MAKING.. Electric wires Aluminium foils to wrap food materials Utensils Farming tools Bells used in places of worship etc

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