Intermolecular forces

tendency of a liquid surface to shrink to reduce surface area

form of association between an electronegative atom and a hydrogen atom attached to a second, relatively electronegative atom

thumb|Dew drops adhering to a [[spider web]] thumb|thumbtime=7|Adhesion of a frog on a wet vertical glass surface. thumb|Concave meniscus (liquid)|meniscus is caused due to adhesion. thumb|

residual forces between molecules or atomic groups not arising from covalent or ionic bonds

forces of attraction or repulsion which act between neighboring particles

in chemistry, a measure for the size of an atom that is not chemically (ionically or covalently) bound; half the closest distance of two equal, non-covalently bound, atoms

thumb|165° water contact angle on a surface modified using plasma technology system surface chemistry. The contact angle is the red angle plus 90°. thumb|Dew drop on a hydrophobic leaf surface thumb|Cutting a water droplet using a [[superhydrophobic knife on superhydrophobic surfaces]] thumb|Water drops on the hydrophobic surface of grass

chemical property of like molecules sticking together

thumb|Schedorhinotermes termites use hydrophilic surfaces on body and wings to attach themselves to plants they colonize.

type of force acting between atoms and molecules

mathematical model that approximates the interaction between a pair of neutral atoms or molecules

aggregation of non-polar molecules in aqueous solutions

use of classical mechanics to model molecular systems

type of scanning probe microscopy

occurs when there is evidence of a net attractive interaction between an electrophilic region associated with a halogen atom in a molecular entity and a nucleophilic region in another, or the same, molecular entity

concept on molecular modeling

theorem that relates the derivative of the total energy with respect to a parameter, to the expectation value of the derivative of the Hamiltonian with respect to that same parameter

thumb|A drop on a lotus surface, with a contact angle of greater than 146°. thumb|thumbtime=0.2|A water droplet falling onto a superhydrophobic, elastic surface.

relative hydrophobicity or hydrophilicity of amino acid residues

interatomic potential energy model

definition for a Van der Waals body-body interaction