All about Carbon 10th std CBSE

1. https://www.google.co.in/webhp?sourceid=chrome-instant&ion=1&espv=2&ie=UTF-8#q=all+about+carbon
2. Carbon

   Chemical Element
   Carbon is a chemical element with symbol C and atomic number 6. It is nonmetallic and tetravalent—making four electrons available to form covalent chemical bonds. Wikipedia

   Symbol: C

   Atomic mass: 12.0107 u ± 0.0008 u

   Atomic number: 6

   Electron configuration: [He] 2s²2p²

   Electronegativity: 2.55

   Discovered: 3750 BC

   Electrons per shell: 2, 4
3. http://www.livescience.com/28698-facts-about-carbon.html
4. http://www.sciencekids.co.nz/sciencefacts/chemistry/carbon.html
5. https://en.wikipedia.org/wiki/Carbon( very detailed)
6. http://www.rsc.org/periodic-table/element/6/carbon
7. http://www.chemicool.com/elements/carbon.html