The picture shows a close-up of one carbon atom. A hydrogen atom has one proton as the nucleus and one electron in the region outside the nucleus. The electron and proton are attracted to each other.

But what makes up a carbon atom—or any other atom? The first subatomic particle to be identified was the electron, in 1898. Ten years later, the British physicist Ernest Rutherford discovered ...

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 ...

Scientists have set up and observed a single electron bond between two carbon molecules. A traditional “single bond” is actually two electrons—one from each atom. This is one electron.

The electron from each atom feels the attraction from the proton ... both directions and room for the electrons in the outer energy level of the atoms. The carbon atom and hydrogen atoms are close ...

By adapting their quantum twisting microscope to operate at cryogenic temperatures, researchers have made the first ...