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WHAT PROPERTIES DO WE USE WHILE CATEGORISING ELEMENT AS METALS OR NOM-METALS WITH EXAMPLE

Asked by rajinder.rs758 12th October 2018, 2:24 PM
Answered by Expert
Answer:
With the help of following properties elements are catagarised into metals and non-metals:

 

Property

Metals

Non-metals

State

Solids at room temperature 

Exception: Mercury 

Liquids, gases or brittle solids

Lustre

Lustrous (show brightness)

Non-lustrous

Exceptions:Graphite,iodine

Malleability

Malleable

Exception: Zinc

Non-malleable

Exception: Carbon fibre

Ductility

Ductile

Exceptions: Zinc, mercury

Non-ductile

Exception: Carbon fibre

Tensile strength

High tensile strength

Low Tensile strength

Exception: Carbon fibre

Sonority

Sonorous

Not sonorous

Conduction of heat and electricity

Good conductor of heat and electricity

Non or poor conductor of electricity

Exception: Graphite

Corrosion

Corrosive

Non-corrosive

Melting and boiling points

High melting and boiling points

     Exceptions: Sodium, potassium, mercury

Low melting and boiling points

Exceptions: Carbon, silicon

Density

High density

Exceptions: Sodium, potassium, calcium

Low density

Exception: Graphite (carbon)

Answered by Expert 15th October 2018, 11:08 AM
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