What happens when 2 or more atoms bond together?

Each element is characterized by an atom with a certain number of protons and neutrons in its nucleus and a certain number of electrons surrounding them. when atoms combine, they share their outermost electrons to create more sustainable energy states. this sharing bonds the atoms into an ionic structure or a molecule.

Atoms can join together - they form bonds together to make molecules. don't find it energetically suitable to bond with other atoms and are called monoatomic molecules, . other atoms with incomplete outer electron shells find it energetically suitable to form a bond with other atoms.