Only one out of every trillion carbon atoms is 14C.

The carbon atoms link with one another and make chains.

In both cases, two specific carbon atoms and their connecting bond are the center of attention.

There is one triple bond between carbon atoms 19 and 20.

All six carbon atoms in the ring are on the same flat plane.

The other two, however, are bound to a carbon atom by both bonds.

Its structure is built on the two carbon atoms bonded to each other.

The groups are on carbon atoms 3 and 9.

There can also be different connectivity between the 5 carbon atoms.

The carbon atoms, still white lines, were lying at angles.