Question

Give an example of the weakest interparticle forces.

Answer 1

Hint: Interparticle forces are the forces of attraction that keep the structures and physical forms of different substances intact. A weak interparticle force is on which is applicable in a very short range and very easy to break using minimum supply of energy.

Complete answer:
Different types of forces are present in compounds that hold the molecules or atoms together. Some of these forces are strong enough to form chemical compounds while the others bring molecules or atoms together and affect their physical state of aggregation.
Ionic and covalent forces are the strongest forces that lead to the formation of high melting and boiling compounds that are difficult to segregate into their constituent elements.
Forces like hydrogen bonding arise due to the polarity difference and the high electronegativity associated with elements like fluorine, oxygen and nitrogen. Though these forces do not contain any new compounds but are responsible for the high melting and boiling points of certain compounds.
The weakest of all these forces are London dispersion forces that fall under the category of Vander Waal forces. These are short range attractions that mainly exist in between nonpolar molecules and can be broken down by supplying very little thermal energy.
Thus, the weakest interparticle force is the London dispersion force.

Note:
Noble gases belonging to the eighteenth group of the modern periodic table do not form bonds and exist as monatomic gases. The Vander Waals forces keep their atoms together and that is why these gases have low melting and boiling points.