physical properties of metals

1. PHYSICAL PROPERTIES OF METALS

2. METALS IN PERIODIC TABLE..

3. METALS

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

5. MALLEABILITY
 Metals can be beaten into thin sheets by
hammering

6. GOLD IS THE MOST MALLEABLE METAL…

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

8. DUCTILITY
 Metals can be drawn into thin fine wires


9.  The filament of electric bulb made of fine
wires of tungsten

10.  Platinum is the most ductile metal
 Copper gold etc also
used as thin wires..

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

12. HARDNESS..
 Hardness is another property of metals
 However there are quite a few metals which
are soft..
Sodium
Lithium
Gallium
Cesium
Pottasium

13. METTALLIC LUSTRE
 The surface of newly formed when metals
are cut ,has shining appearance

14. THERMAL CONDUCTIVITY
 The ability to conduct heat is an important
property of metals

15.  Silver is the best thermal conductor among
metals
 Aluminium ,copper etc also possess
comparatively high thermal conductivity

16. ELECTRICAL CONDUCTIVITY
 The ability of metals to let electricity pass
through it

17. SONORITY
 The ability of metals to produce sound when
tapped with a hard material

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