If a question is asked is this substance a conductor or insulator of electricity and we know almost all metals are condutor but plastic are insulator. But if we don't know is it a metal or a plastic then how we are going to answer such questions ?

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Solution

Metals And Non Metals Has certain properties.

We can identify a metal from a non metal from this
Metallic ElementsNonmetallic elementsCharacteristic properties of metallic and non-metallic element

Distinguishing luster (shine) Non-lustrous, various colors

Malleable and ductile (flexible) as solids Brittle, hard or soft

Conduct heat and electricity Poor conductors

Metallic oxides are basic, ionic Nonmetallic oxides are acidic, covalent

Form cations in aqueous solution Form anions, oxyanions in aqueous solution


Distinguishing luster (shine)	Non-lustrous, various colors
Malleable and ductile (flexible) as solids	Brittle, hard or soft
Conduct heat and electricity	Poor conductors
Metallic oxides are basic, ionic	Nonmetallic oxides are acidic, covalent
Form cations in aqueous solution	Form anions, oxyanions in aqueous solution

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