Write any four points of difference in chemical properties of metals and non metals
Answers
Differences in Physical Properties
Metals are malleable.Non-metals are non-malleable or brittle.Metals are ductile.Non-metals are non-ductile.
Metals are good conductors of heat and electricity.Non-metals are bad conductors of heat and electricity.
Metals are Lustrous and can be polished.Non-metals are non-lustrous and cannot be polished.
Metals are solid at room temperature.Non-metals may be solid, liquid or Gases at room temperature.
The melting and boiling points of metals are generally high.Non-metals have low melting and boiling points as compared to metals.
All metals are strong.Non-metals are not strong.
Generally, metals are hard.Most of Non-metals are soft.
Metals are heavy.Non-metals are light substances.10Metals are sonorous.Non-metals are non-sonorous.
Differences in Chemical Properties
All metals react with oxygen to form metal oxides.All non-metals react with oxygen to form acidic or neutral oxides.
Metals react with water to produce metal oxide (or metal hydroxide) and hydrogen gas.Non-metals do not react with water.
Metals react with a dilute acid to form a metal salt and hydrogen gas.Non-metals do not react with dilute acids .
All metals react with chlorine to form ionic metal chlorides.Non-metals react with chlorine to form covalent chlorides.
Only a few metals like Na, K, Ca and Mg react with hydrogen to form metal hydrides.Non-metals react with hydrogen to form covalent Hydrides.
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1)Metal have high density whereas non metals have low density.
2.)Metals good conductors of heat and electricity whereas non metals are bad conductors of heat and electricity.
3) Metals reacts with water whereas non metals do not reacts with water.
4) Metals form alloys whereas non metals do not form alloys.