In biology, a pair bond is the strong affinity that develops in some species between a mating pair, often leading to the production and rearing of young...

bond is a chemical bond that involves the sharing of electrons to form electron pairs between atoms. These electron pairs are known as shared pairs or...

interference" stabilizes the paired nuclei (see Theories of chemical bonding). Bonded nuclei maintain an optimal distance (the bond distance) balancing attractive...

reactive substances in a chemical equation. The term pair bond originated in 1940 in reference to mated pairs of birds; referring to a monogamous or relatively...

lone pair refers to a pair of valence electrons that are not shared with another atom in a covalent bond and is sometimes called an unshared pair or non-bonding...

Ionic bonding is a type of chemical bonding that involves the electrostatic attraction between oppositely charged ions, or between two atoms with sharply...

James Bond is a fictional character created by British novelist Ian Fleming in 1953. A British secret agent working for MI6 under the codename 007, Bond has...

group (Dn), and another electronegative atom bearing a lone pair of electrons—the hydrogen bond acceptor (Ac). Such an interacting system is generally denoted...

stronger than lone pair–bonding pair (lp–bp) repulsions, which in turn are considered stronger than bonding pair–bonding pair (bp–bp) repulsions, distinctions...

Monogamous pairing in animals refers to the natural history of mating systems in which species pair bond to raise offspring. This is associated, usually...

such as violence against a beloved partner or problems with social bonding. Pair bonding, or intense social attachment, normally initiates partner preference...

Breeding pair is a pair of animals which cooperate over time to produce offspring with some form of a bond between the individuals. For example, many...

bond and combining efforts to raise offspring together; mating outside this pairing is extra-pair copulation. Across the animal kingdom, extra-pair copulation...

categorization of the chemical bond. In 1916, chemist Gilbert N. Lewis developed the concept of the electron-pair bond, in which two atoms share one to...

triple bonds, where a "bond" is a shared pair of electrons (the other method of bonding between atoms is called ionic bonding and involves a positive...

the theory over the course of the night. Later, Linus Pauling used the pair bonding ideas of Lewis together with Heitler–London theory to develop two other...

consists of covalently-bound pairs of atoms in both liquid and solid-state—these pairs form a crystal structure with metallic bonding between them. Another example...

the wing. Bills are grey and legs and feet are pink in both sexes. Pairs easily bond. Their contact calls are a cat-like mee-oowing in ducks and a lingering...

and RNA. Dictated by specific hydrogen bonding patterns, "Watson–Crick" (or "Watson–Crick–Franklin") base pairs (guanine–cytosine and adenine–thymine)...

different animals) in an attempt to establish a new pair-bond. It remains unclear whether the pair-bond is a real phenomenon for R. leachianus. Reports from...

exhibit human-like social behavior in groups. Prairie voles are noted for pair bonding with their partners. The male prairie vole has continuous contact with...

in bonding but may form a dative bond with a Lewis acid to form a Lewis adduct. For example, NH3 is a Lewis base, because it can donate its lone pair of...

Gilbert N. Lewis introduced the concepts of both the electron pair and the covalent bond in a landmark paper he published in 1916. Because electrons are...

coordinate covalent bond, also known as a dative bond, dipolar bond, or coordinate bond is a kind of two-center, two-electron covalent bond in which the two...

chemistry, a double bond is a covalent bond between two atoms involving four bonding electrons as opposed to two in a single bond. Double bonds occur...

may play an important role in social behavior, sexual motivation and pair bonding, and maternal responses to stress. Vasopressin induces differentiation...

choice preference and pair-bond defense, to demonstrate fidelity to their partner. Either partner is able to divorce the pair-bond to pursue a higher-quality...

shell. As a result, the inert pair of ns electrons remains more tightly held by the nucleus and hence participates less in bond formation. Consider as an...

bond and two pi bonds in two mutually perpendicular planes containing the bond axis. Two pi bonds are the maximum that can exist between a given pair...

chemistry, bond energy (BE) is one measure of the strength of a chemical bond. It is sometimes called the mean bond, bond enthalpy, average bond enthalpy...