Atoms bond together for a very simple reason: atoms like to have full valence shells . (8 electrons)
Atoms will share, give away, or gain electrons when forming a bond.
Substances in which 2 or more elements have bonded together form a material with unique chemical properties.
Example : water - 2 Hydrogen atoms bonded to 1 Oxygen atom. H2O
All matter is made of atoms. Why would an atom combine with other atoms? To make the atom stable When an atom combines with another atom, this forms a molecule? The other type of bond is a compound.