carbon

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Symbol:

C

Atomic Number:

6

Relative Atomic Mass:

12.0107 g mol^-1

Natural Abundance in Lithosphere, hydrosphere and atmosphere:

0.09% (mass fraction)

Electron Configuration:

[He]2s²2p²

Oxidation States:

IV, II, -IV

Atomic Radius:

77.2pm

Covalent Radius:

77pm

Ionic Radius:

15pm (for +4 oxidation state)

Van der Waals Radius:

170pm

Melting Point:

3550°C

Density:

3.51 g cm^-3 (at 20°C)

First Ionisation Energy:

11.260 eV

Electronegativity (Allred and Rochow):

2.5

Number of Natural Isotopes:

2

Mass Number of the Most Abundant Isotopes:

12 g mol^-1 a 98.89% abundance

13 g mol^-1 a 1.11% abundance