3. Non-Metals are Bad Conductors of Heat and Electricity.
This means that non-metals do not allow heat and electricity to pass through them. For example, sulphur and phosphorus are non-metals which do not conduct heat or electricity. Many of the non-metals are, in fact, insulators. There are, however, some exceptions. A form of the carbon element, diamond is a non-metal which is a good conductor of heat. And another form of carbon element, graphite is a non-metal which is a good conductor of electricity. Being a good conductor of electricity, graphite is used for making electrodes (as that in dry cells).
Notes
Matter in Our Surroundings - Notes
1. 3. Non-Metals are Bad Conductors of Heat and Electricity.
Show Notes
3. The Case of a Liquid Solute Dissolved in a Liquid Solvent
Show Notes
4. 11. Metals Usually Have a Silver or Grey Colour
Show Notes
8. 7. Metals are Solids at the Room Temperature
Show Notes
10. 7. Non-Metals may be Solid, Liquid or Gases at the Room Temperature.
Show Notes
11. Separation Of Mixture Of a Solid And a Liquids
Show Notes
12. 6. Non-Metals are Not Strong. They Have Low Tensile Strength.
Show Notes
13. To Study the Properties of a Colloid
Show Notes
16. To Study the Properties of a Compound of Iron and Sulphur
Show Notes
17. 11. Non-Metals Have Many Different Colours.
Show Notes
21. 1. Separation by a Suitable Solvent
Show Notes
24. 6. Metals are Usually Strong. They Have High Tensile Strength.
Show Notes
27. To Study the Properties of a Solution
Show Notes
30. Separation of Mixture Of Two Solids
Show Notes
36. To Distinguish a Colloid from a Solution
Show Notes
38. 3. Metals are Good Conductors of Heat and Electricity.
Show Notes
43. 1. Separation by Fractional Distillation
Show Notes
47. Chemical Formula for daily use material
Show Notes
49. Solutions, Suspensions And Colloids
Show Notes
50. To Separate the Salt-Water Mixture (or Salt-Solution)
Show Notes
