physical properties of metals

14,491 views 19 slides Nov 10, 2015
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About This Presentation

physical properties of metals


Slide Content

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.. Sodium Lithium Gallium Cesium Pottasium

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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