Discovery of stable single-electron covalent bond in carbon compound validates a century-old theory Covalent bonds, in which ...

A covalent bond is a shared pair of electrons between two non-metal atoms, for example carbon dioxide. Figure caption, Two atoms sharing a pair of electrons. A covalent bond happens when the ...

When two hydrogen atoms get close enough, the electron from each atom feels an attraction from the proton in the other atom's nucleus. This attraction pulls the atoms together. The electrons end up ...

Chemical reactions result from interactions between the electrons in two atoms. In Bohr's model, if an electron orbit is not ...

Students are guided to take atoms apart, rearrange them, and put them together again in different ways to make six different molecules. Students also see a fun molecule-making game that they can try.