Question

List in tabular form any three chemical properties on the basis of which metal and non metals are differentiated

Answer 1

Chemical properties of metal

1. all metal reacts with oxygen to from metal oxide.

2. metal reacts with water to produce metal oxide ( or metal hydroxide ) and hydrogen gas.

3. metal reacts with diluted acid to form a metal salt and hydrogen gas.

4. all metal reacts with chlorine to form ionic metal chlorine.

5. Only a few metals like Na, K, Ca and Mg react with hydrogen to form metal hydrides.

non metal

1. All non-metals react with oxygen to form acidic or neutral oxides.

2. Non-metals do not react with water.

3. Non-metals do not react with dilute acids

4. Non-metals react with chlorine to form covalent chlorides.

5. Non-metals react with hydrogen to form covalent Hydrides.

Answer 2

Answer:

Metals are good conductors of heat and electricity. Metals are highly malleable and ductile. Nonmetals are the elements that gain electrons and form negative ions. ... Nonmetals are bad conductors of heat and electricity.