Non Metals

NON - METALS


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15 DIFFERENCES BETWEEN PROPERTIES OF METALS AND NON-METALS



Differences in Physical Properties


Serial No. Metals Non-Metals
1 Metals are malleable. Non-metals are non-malleable or brittle.
2 Metals are ductile. Non-metals are non-ductile
3 Metals are good conductors of heat and electricity. Non-metals are bad conductors of heat and electricity.
4 Metals are Lustrous and can be polished. Non-metals are non-lustrous and cannot be polished.
5 Metals are solid at room temperature. Non-metals may be solid, liquid or Gases at room temperature.
6 The melting and boiling points of metals are generally high. Non-metals have low melting and boiling points as compared to metals.
7 All metals are strong. Non-metals are not strong.
8 Generally, metals are hard. Most of Non-metals are soft.
9 Metals are heavy. Non-metals are light substances.
10 Metals are sonorous. Non-metals are non-sonorous.



Differences in Chemical Properties


Serial No. Metals Non-Metals
1 All metals react with oxygen to form metal oxides All non-metals react with oxygen to form acidic or neutral oxides.
2 Metals react with water to produce metal oxide (or metal hydroxide) and hydrogen gas. Non-metals do not react with water.
3 Metals react with a dilute acid to form a metal salt and hydrogen gas. Non-metals do not react with dilute acids .
4 All metals react with chlorine to form ionic metal chlorides. Non-metals react with chlorine to form covalent chlorides.
5 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.