Physical and chemical properties of metal …

Non-Metals

1. Oxides of metal are basic in nature.

1. Oxides of non-metals are acidic innature.

2. Metals displace hydrogen from diluteacids.

2. They cannot do so.

3. Metals form chlorides which areelectrovalent or ionic compounds.

3. Non-metals form chlorides which arecovalent compounds.

4. they displace hydrogen from water

4. They cannot do so.

Metals

Non-metals

1. Metals are generally solid at room temperature. (Except Mercury)

1. Non-metals exist in all the three states i.e solid liquid and gas.

2. Metals are generally hard. (except sodium which can be cut using a knife)

2. Non-metals are generally soft. (except diamond which us the hardest substance on the earth)

3. Metals are Malleable; means can be converted into thinsheets using a hammer. (except sodium and potassium)

3. Non-metals are generally brittle. Will broke down intopieces when beaten by a hammer.

4. Metals are ductile, means they can be converted into thinwires.

4. Non-metals are non ductile.

5. Metals have shiny surface or they are lustrous.

5. They are non lustrous. (except iodine)

6. Metals can lose electrons so they are electropositive innature.

6. Non-metals gain electrons so they are electronegative innature.

7. Metals are good conductors of heat and electricity.

7. Non-metals are bed conductors of heat and electricity.(Except graphite)

8. Metals are sonorous. They produce a sound on striking witha hard surface.

8. They does not do so they are not sonorous.

9. Metals generally have high densities. (except alkalimetals)

9. Non-metals generally have low densities.