UPSC CDS 2 2021 GK Paper

Although widely distributed in nature, carbon is not particularly plentiful as it makes up only about 0.025 per cent of Earth's crust yet it forms more compounds than all the other elements combined.Carbon is a chemical element with the symbol C and atomic number is 6 . It is non-metallic and tetravalent element. It is having 4 electrons available for covalent chemical bonds. It belongs to group 14 of the periodic table.