Write differences between diamond and graphite.
Differences between diamond and graphite -
Property | Diamond | Graphite |
1.Geometry | It is crystalline and tetrahedral in geometry. | It is layered structure and planner in geometry. |
2. Colour | Pure diamond is colourless. | Graphite is black,shiny and opaque. |
3. Nature | It is the hardest natural substance. | It is soft and slippery to touch. |
4. Density | It has a density of 3.5 g/cm3 . | It has a density of 2.2 g/cm3 . |
5.Electrical conductivity | It is a bad conductor of electricity. | It is a good conductor of electricity. |
6. Effect of heat | It burns in air above 700- 800C to form carbon dioxide. | It burns in the air at 700 C to form carbon dioxide. |
7. Bond | It has four covalent bonds around one carbon atom. | It has three covalent bonds around one carbon atom. |