Chemical dating carbon

Diamonds are also used for their hardness in cutting tools and precision instruments. People have known about carbon as a substance since ancient times.

French scientist Antoine Lavoisier determined that diamond was made of carbon in 1772. Carbon gets its name from the Latin word "carbo" meaning charcoal or coal.

Carbon-12 makes up almost 99% of the carbon found on Earth. Carbon is the fourth most abundant element in the universe by mass and the second most abundant element in the human body.Carbon is constantly cycled through the Earth's oceans, plant life, animal life, and atmosphere. Characteristics and Properties Carbon is found on Earth in the form of three different allotropes including amorphous, graphite, and diamond.In its diamond allotrope, carbon is the hardest known substance in nature.It also has the highest thermal conductivity of any element. Graphite, on the other hand, is one of the softest materials and is black-gray in color. Amorphous carbon is generally black and is used to describe coal and soot.

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