The goal of this activity is to construct a carbon atom. You'll start with a hydrogen atom, which contains one proton and one electron. To build other atoms, just add protons, neutrons ...

The “lead” of a pencil is actually made of a substance called graphite which is made of carbon atoms. The picture shows a close-up of one carbon atom. A hydrogen atom has one proton as the nucleus and ...

In new research, scientists have realized a century-old dream of a single electron covalent bond between two carbon atoms observed in situ. They’ve previously observed this bond between atoms ...