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Periodic table / Other non-metals

6Carbon

Carbon is an other non-metal in group 14, period 2. At 25 °C it is a solid.

C
Shells: 2, 4. A simple picture: electrons do not move in circles.
Symbol
C
Atomic number
6 protons in the nucleus
Standard atomic weight
12.011 ± 0.002
Electron configuration
[He] 2s2 2p2
Electrons in each shell
2, 4
Group, period, block
14, 2, p
Family
Other non-metals
State at 25 °C
solid
Electronegativity
2.55 (Pauling scale)
First ionisation energy
1086.5 kJ/mol (11.260288 eV)
Where these numbers come from

Atomic weight: IUPAC CIAAW, abridged standard atomic weights 2024. Electron configuration and ionisation energy: NIST Atomic Spectra Database. Family, state and electronegativity: PubChem. See Sources. Melting points, boiling points and densities are left out for now: published values differ between sources, and we will add them once each has been checked.