carbon

element 6

Carbon

chemical element with symbol C and atomic number 6; common element of all known life

Coal anthracite.jpg

C

Chemical element with atomic number 6 (C)

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Carbon is a chemical element; it has symbol C and atomic number 6. It is nonmetallic and tetravalent???meaning that its atoms are able to form up to four covalent bonds due to its valence shell exhibiting 4 electrons. It belongs to group 14 of the periodic table. Carbon makes up about 0.025 percent of Earth's crust. Three isotopes occur naturally, 12C and 13C being stable, while 14C is a radionuclide, decaying with a half-life of 5,700??years. Carbon is one of the few elements known since antiquity.

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Carbon

standard