Mendeleev's Periodic Table > C - Carbon

C - Carbon

Although the name carbon comes from Roman times, the non-metallic element has been known, as charcoal, coal, diamonds and soot, since the dawn of mankind. Carbon is found free in nature in three allotropic forms: amorphous, graphite, and diamond. Graphite is one of the softest known materials while diamond is one of the hardest. Carbon is distributed very widely in nature. Except for carbonates which were discovered in minerals, compounds that contain carbon are called organic compounds.

Atomic number	-	6		Density	g/mL	2	.62
Atomic weight	u	12	.011	Melting point	K	4100
Bonding radius	A	0	.77	Boiling point	K	4470
Atomic radius	A	0	.91	Heat of vaporization	kJ/mol	355	.8
Ionization Potential	V	11	.26	Heat of fusion	kJ/mol	-
Electronegativity	-	2	.55	Specific heat	J/gK	0	.71
The oxide is mildly acidic.				Crystal are hexagonal.
Electron config. : 1s² 2s² 2p²

Isotopes of C (Carbon):

MASS abundancy Halflife Particle, Energy Decay Product(s) Isotopic Mass	008 230KEV 2p,2.142 MeV Be-6 8.0376749	009 126.5 msec EC/EC2a/ECp,16.498 B-9/H-1/Be-8 9.0310404	010 19.255 sec EC,3.648 MeV B-10 10.016853	011 20.39 min EC,1.982 MeV B-11 11.011433
MASS abundancy Halflife Particle, Energy Decay Product(s) Isotopic Mass	012 98.89% Stable 12.0	013 1.11% Stable 13.003354	014 1.3E-10% 5730 yr B-,20.644 MeV N-14 14.003242	015 2.449 sec B-,9.772 MeV N-15 15.010599
MASS abundancy Halflife Particle, Energy Decay Product(s) Isotopic Mass	016 0.747 sec B-,8.012 MeV N-16 16.014701	017 193 msec B-/B-n,13.166 N-17/N-16 17.022584	018 95 msec B-/B-n,11.810 N-18/N-17 18.026752	019 49 msec B-/B-n,11.640 N-19/N-18 19.035244
MASS abundancy Halflife Particle, Energy Decay Product(s) Isotopic Mass	020 14 msec B-/B-n,13.630 N-20/N-19 20.040322

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