Molecule
A neutral group of atoms joined by covalent bonds
Covalent bond
The chemical bond formed when two atoms share electrons
Double bond
Two atoms share two pairs of electrons
Triple bond
Atoms that sharp three pairs of electrons
Molecular compound
The compound that is composed of molecules
Polar bond
A covalent bond in which electrons are shared unequally
Nonpolar bond
A covalent bond in which electrons are shared equally