Dipole molecules are created when mutual electronic pair at covalent bond is asymmetrical. If different atoms are bonded by a covalent bond, which can have different electron affinity, then the the atom with greater electron affinity will attract the electron pairs more strongly. In this way an asymmetrical distribution of negative charge appears in a molecule, so one part of the molecule becomes relatively negatively (the one closer to the electron pair) and the other becomes relatively positively charged.
Polyvalent molecule is a molecule which having multiple binding sites. The antibodies of our immune system are one example.
Nonpolar molecule is a molecule which has no separation of charge, so no positive or negative poles are formed. For example, the Cl2 molecule has no polar bonds (molecule with one type of atom), CH4 is a non-polar molecule (due to its symmetry). Nonpolar molecules do not dissolve in water as they cannot form hydrogen bonds (thus are hydrophobic) but do dissolve in lipids or fats (lipophilic).
Polar molecules are molecules at which centres of gravity of positive and negative charge are not in the same point.
Chiral molecule is a molecule which cannot be superimposed on its mirror image. A common example is an organic molecule containing a carbon atom to which four different atoms or groups are attached. Such molecules exhibit optical activity, i.e., they rotate the plane of a polarised light beam.
Molecular formula is a formula which represents one molecule of an element or a compound, and the number of atoms in each one of them.
Molecular lattice is a crystal lattice made molecules bonded together by intermolecular forces.
Percentage composition of atom in the molecule is a structure of compound presented in the shape of a percentage of its mass, which comes from every element.
Generalic, Eni. "Molekula." Croatian-English Chemistry Dictionary & Glossary. 29 June 2022. KTF-Split. {Date of access}. <https://glossary.periodni.com>.
Glossary
Periodic Table