
I don't know. How do CARBON atoms
form a benzene ring?
The Big Bang Theory Season 2, Episode 13

...while I build CARBON atoms.
The Big Bang Theory Season 3, Episode 14

Unit cell contains two CARBON atoms.
The Big Bang Theory Season 3, Episode 14

Did you give any consideration
to CARBON nanotubes?
The Big Bang Theory Season 1, Episode 12

and come home with
sacks full of CARBON
The Big Bang Theory Season 5, Episode 12