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Hydrogen Bonding in Hydrogen Flouride (HF)

Definition Hydrogen bonding is a weak type of force which forms a dipole-dipole interaction between two molecules within the same molecule. Depending upon different contexts, its definition has been changing. According to earlier definitions “Hydrogen bonds is an interaction between the covalent pair A—H (donor) to a nearby electronegative atom B or X (acceptor). And … Read more

Dative Bond

Introduction What is a chemical bond? A Chemical bond detains molecules together. It also creates temporary connections that are essential to life. What is chemical bonding? Chemical bonding is any relationship that is responsible for the association of atoms into molecules, ions, crystals and other species that makes up the substance of the everyday world. … Read more

Double Covalent Bond

History Initially, the term covalence concerning bonding was used in 1919, by Irving Langmuir in an American journal known as the Journal of the American Chemical Society under the title of “The Arrangement of Electrons in Atoms and Molecules.” Langmuir wrote in his journal that “we shall denote by the term covalence the number of … Read more

Van der Waals Force

Introduction The van der Waals force was named after a Dutch scientist Johannes Diderik van der Waals (1837-1923). This is considered as the first type of intermolecular forces between atom and molecules. Like ionic or covalent bonds, these attraction forces do not result from a chemical bond as they are comparatively weak and hence can … Read more

Ionic Bond

Introduction of Ionic Bond Ionic bond is a kind of chemical bond which involves an electrostatic attraction between two oppositely charged ions because of the complete transfer of valence electrons between them. As for example: metals such as sodium losses electrons to to become positive ion, whereas non-metal such as chlorine accepts electrons to become … Read more

Metallic Bond

Metallic Bond Definition Metallic bonding is a special type of bonding that holds the metals together in metal crystal. This bond is neither covalent nor ionic. Metals have tendency to give up electrons and none is their to accept it. There are several theories to explain this type of bonding, among them the electron sea … Read more

Hydrogen Bond

Hydrogen Bond Definition Hydrogen bond is an attractive force between a partially positive charged hydrogen and a partially negative charged atom (oxygen and nitrogen). This is a very weak bond and strength of hydrogen bond (5-10 Kcal per bond) is much less than the strength of covalent bond. Hydrogen bonds are usually showed as dotted … Read more

Covalent Bond

Covalent Bond Definition A covalent bond is a chemical bond that involves the sharing of electron pairs between two atoms. These electron pairs are known as bonding electron pairs, and they share these electrons to form covalent bond. This bonding is  primarily found between nonmetals; however, it can also be observed between nonmetals and metals. Covalent Bond Example … Read more