Carbon

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 about 5,730 years. Carbon is one of the few elements known since antiquity. Read more on Wikipedia

Mentions (normalised)

The number of mentions of the word carbon normalised by the total items over a 30 day interval.

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Total Mentions

Total number of mentions of the word carbon over a 30 day interval.

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