difference between metal and nonmetals
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a element which contain positive valency is called metal and which contain negative valency is called non metal
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Explanation:
Metals:
Metals are usually good conductors of heat and electricity.
They are hard, opaque, shiny, lustrous and malleable and ductile.
Metals usually form ionic bonds.
non metals
Non-metals are usually good insulators of heat and electricity.
They are usually brittle and have dull appearence.
None-metals usually form covalent compounds.
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