6
C
carbon
12.011

General properties

Group
group 14
Period
period 2
Category
nonmetals
Standard atomic weight
12.011
[12.0096, 12.0116]
Melting point
none
Boiling point
none
Phase at STP
solid

Additional properties

Block
p-block
Electron configuration
[He] 2s² 2p²
Electrons per shell
2, 4
Electronegativity
2.55
Density
amorphous: 1.8–2.1 g/cm³ graphite: 2.267 g/cm³ diamond: 3.515 g/cm³
Oxidation states
−4, −3, −2, −1, 0, +1, +2, +3, +4 (a mildly oxide)
CAS Number
7440-44-0