Carbon (C)

Carbon is a chemical element with symbol C and atomic number 6. It is nonmetallic and tetravalent—making four electrons available to form covalent chemical bonds.

Atomic Number

6

Atomic Mass

12.011 u

Category

nonmetal

Phase

solid

Density

2.267 g/cm³

Electron Shells

2, 4

Atomic Structure

Protons: 6 • Electrons: 6 • Neutrons: Varies by isotope

Electron Configuration: 1s² 2s² 2p²

Discovery

Unknown