In its elemental form, carbon occurs in nature as diamond and graphite. Coal, charcoal and coke are impure forms of carbon. The latter two are obtained by heating wood and coal in the absence of air, respectively. In the combined state, carbon is present as carbonate in many minerals, such as hydrocarbons in natural gas, petroleum etc. In air, carbon dioxide is present in small quantities, (0.03%).Our food also contains carbon in the combined form. All living systems contain carbon compounds. Indeed, life as we know today, would be impossible without such carbon compounds.
Carbon is a non-metallic element and the first member of group 14 of the periodic tableSymbol: C, Electronic configuration1s2, 2s22p2, Melting point = 800K
Atomic mass: 12.01amu, Atomic radius 77pm, Atomic number: 6