One porous form of this element is useful for adsorption reactions and in water filtration; that form is known as its "activated" variety.  One isotope of this element has a half-life of 5730 years; that mass 14 isotope is used for radiometric dating. Organic compounds must contain this element, whi
One porous form of this element is useful for adsorption reactions and in water filtration; that form is known as its "activated" variety.  One isotope of this element has a half-life of 5730 years; that mass 14 isotope is used for radiometric dating. Organic compounds must contain this element, which forms an allotrope that is the hardest substance in the world. For 10 points, name this element with atomic number 6 that can be found in coal, graphite, and diamond.
One porous form of this element is useful for adsorption reactions and in water filtration; that form is known as its "activated" variety.  
{carbon}