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Carbon (C)

Carbon (C) is element 6 of the periodic table, a nonmetal in period 2 and group 14. Its standard atomic weight is 12.011, so one mole of carbon atoms has a mass of 12.011 g. At room temperature it is a solid; it melts at 3549.85 °C and boils at 3824.85 °C.

6 C Carbon 12.011

Period 2, group 14 · Nonmetal

← B Boron N Nitrogen →

Atomic number	6
Symbol	C
Standard atomic weight	12.011
Molar mass	12.011 g/mol
Category	Nonmetal
Group	14
Period	2
Block	p-block
Electron configuration	[He] 2s² 2p²
Oxidation states	+4, +2, −4
Electronegativity (Pauling)	2.55
Atomic radius (van der Waals)	170 pm
First ionisation energy	11.26 eV (1086.4 kJ/mol)
Electron affinity	1.263 eV
State at room temperature	Solid
Melting point	3823 K (3549.85 °C)
Boiling point	4098 K (3824.85 °C)
Density	2.267 g/cm³
Discovered	Known since antiquity

Group 14

Si · Silicon Ge · Germanium Sn · Tin Pb · Lead Fl · Flerovium

Calculate with Carbon

Molar mass of C Balance an equation Grams, moles and particles Whole periodic table

Atomic weight: IUPAC CIAAW standard atomic weight. Other properties: PubChem (U.S. National Library of Medicine, public domain). Values such as melting point and radius depend on how they were measured; check a data book for precise work.