Carbon Valence Electrons
Why carbon has 4
Carbon has 6 electrons, arranged as 1s2 2s2 2p2. The highest shell is n = 2, holding 2s2 2p2, so 2 + 2 = 4.
Carbon is in group 14; for groups 13–18 subtract 10 from the group number.
What that means for bonding
Four is halfway to an octet, so carbon usually shares electrons rather than gaining or losing them, forming four covalent bonds.
Electrons per shell: 2, 4. See the carbon electron configuration and orbital diagram or the full carbon data sheet.
Same group, same count
Carbon valence electrons FAQ
How many valence electrons does carbon have?
Carbon has 4 valence electrons. Its electron configuration is 1s² 2s² 2p², and the outermost shell (n = 2) holds 2s² + 2p².
How do you find the valence electrons of carbon?
Carbon is in group 14; for groups 13–18 subtract 10 from the group number.
How many bonds does carbon form?
Four is halfway to an octet, so carbon usually shares electrons rather than gaining or losing them, forming four covalent bonds.
What is the Lewis dot structure of carbon?
The symbol C with 4 dots around it, one per valence electron, placed singly on each side before any side is paired.
How many core electrons does carbon have?
2: 6 electrons in total minus the 4 valence electrons.