question_answer 5)

Some properties are listed in the following table. Distinguish between metals and non- metals on the basis of these properties.

Properties	Metals	Non – metals
1. Appearance
2. Hardness
3. Malleability
4. Ductility
5. Heat conduction
6. Conduction of electricity

 

Answer:

Properties	Metals	Non – metals
1. Appearance	Metallic lustre	No-metallic lustre exception: graphite, iodine
2. Hardness	Generally hard, exception:sodium (Na), potassium (K) and magnesium (Mg)	Generally soft, exception: diamond
3. Malleability	Generally malleable	Non-malleable
4. Ductility	Generally ductile	Non-ductile
5. Heat conduction	Good conductors	Bad conductors
6. Conduction of electricity	Good	Bad, exception : graphic