| A | B |
|---|
| Covalent bond | A chemical bond that involves the sharing of electron pairs between atoms |
| Molecule | A neutral group of atoms joined together by covalent bonds. |
| Diatomic molecule | A molecule that contains two atoms |
| Molecular compound | A compound composed of molecules |
| Molecular formula | Shows how many atoms of each element a substance contains. |
| Ionic bond | chemical bond that involves the electrostatic attraction between oppositely charged ions which occur when valence electrons are transferred from one atom to another |
| Ionic compound | A compound composed of cations and anion that is electrically neutral. |
| Ions | Form when an atom or group of atoms loses or gains electrons |
