Carbon

	boron ← carbon → nitrogen
Ìfarahàn
	Clear (diamond), black (graphite); ; ; Spectral lines of Carbon
Àwọn ìní àníkárí
Orúkọ, àmì-ìdámọ̀, nọ́mbà	carbon, C, 6
Ìpè	/ˈkɑrbən/
Ẹ̀ka apilẹ̀sẹ̀	nonmetal
Àdìpọ̀, ìgbà, block	14, 2, p
Ìwúwo átọ́mù	12.0107(8) g·mol−1
Ìtòjọ ẹ̀lẹ́ktrónì	1s2 2s2 2p2 or [He] 2s2 2p2
Àwọn ẹ̀lẹ́ktrónì lórí ọ̀nà kan	2,4 (Image)
Àwọn ìní aláfójúrí
Phase	Solid
Kíki (tó súnmọ́ r.t.)	amorphous: 1.8–2.1 g·cm−3
Density (near r.t.)	graphite: 2.267 g·cm−3
Density (near r.t.)	diamond: 3.515 g·cm−3
Sublimation point	3915 K, 3642 °C, 6588 °F
Triple point	4600 K (4327°C), 10800 kPa
Heat of fusion	117 (graphite) kJ·mol−1
Specific heat capacity	(25 °C) 8.517(graphite),; 6.155(diamond) J·mol−1·K−1
Atomic properties
Oxidation states	4, 3 , 2, 1 , 0, -1, -2, -3, -4
Electronegativity	2.55 (Pauling scale)
Ionization energies; (more)	1st: 1086.5 kJ·mol−1
	2nd: 2352.6 kJ·mol−1
	3rd: 4620.5 kJ·mol−1
Covalent radius	77(sp³), 73(sp²), 69(sp) pm
Van der Waals radius	170 pm
Miscellanea
Magnetic ordering	diamagnetic
Thermal conductivity	(300 K) 119-165 (graphite); 900-2300 (diamond) W·m−1·K−1
Thermal expansion	(25 °C) 0.8 (diamond) µm·m−1·K−1
Speed of sound (thin rod)	(20 °C) 18350 (diamond) m/s
Young's modulus	1050 (diamond) GPa
Shear modulus	478 (diamond) GPa
Bulk modulus	442 (diamond) GPa
Poisson ratio	0.1 (diamond)
Mohs hardness	1-2 (Graphite); 10 (Diamond)
CAS registry number	7440-44-0
Most stable isotopes
	Main article: Isotopes of carbon
	w · o · a