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  2. Ionic bonding - Wikipedia

    en.wikipedia.org/wiki/Ionic_bonding

    4 or SO 2− 4. In simpler words, an ionic bond results from the transfer of electrons from a metal to a non-metal to obtain a full valence shell for both atoms. Clean ionic bonding — in which one atom or molecule completely transfers an electron to another — cannot exist: all ionic compounds have some degree of covalent bonding or

  3. Oxidation state - Wikipedia

    en.wikipedia.org/wiki/Oxidation_state

    The −1 occurs because each carbon is bonded to one hydrogen atom (a less electronegative element), and the − ⁠ 1 / 5 ⁠ because the total ionic charge of −1 is divided among five equivalent carbons. Again this can be described as a resonance hybrid of five equivalent structures, each having four carbons with oxidation state −1 and ...

  4. Chemical bond - Wikipedia

    en.wikipedia.org/wiki/Chemical_bond

    Ionic bonding is a type of electrostatic interaction between atoms that have a large electronegativity difference. There is no precise value that distinguishes ionic from covalent bonding, but an electronegativity difference of over 1.7 is likely to be ionic while a difference of less than 1.7 is likely to be covalent. [21] Ionic bonding leads ...

  5. Intramolecular force - Wikipedia

    en.wikipedia.org/wiki/Intramolecular_force

    An ionic bond can be approximated as complete transfer of one or more valence electrons of atoms participating in bond formation, resulting in a positive ion and a negative ion bound together by electrostatic forces. [4] Electrons in an ionic bond tend to be mostly found around one of the two constituent atoms due to the large electronegativity ...

  6. Structural formula - Wikipedia

    en.wikipedia.org/wiki/Structural_formula

    Skeletal structural formula of Vitamin B 12.Many organic molecules are too complicated to be specified by a molecular formula.. The structural formula of a chemical compound is a graphic representation of the molecular structure (determined by structural chemistry methods), showing how the atoms are connected to one another. [1]

  7. Glossary of chemistry terms - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_chemistry_terms

    Also acid ionization constant or acidity constant. A quantitative measure of the strength of an acid in solution expressed as an equilibrium constant for a chemical dissociation reaction in the context of acid-base reactions. It is often given as its base-10 cologarithm, p K a. acid–base extraction A chemical reaction in which chemical species are separated from other acids and bases. acid ...

  8. Bond order - Wikipedia

    en.wikipedia.org/wiki/Bond_order

    In chemistry, bond order is a formal measure of the multiplicity of a covalent bond between two atoms. As introduced by Gerhard Herzberg, [1] building off of work by R. S. Mulliken and Friedrich Hund, bond order is defined as the difference between the numbers of electron pairs in bonding and antibonding molecular orbitals.

  9. Valence bond theory - Wikipedia

    en.wikipedia.org/wiki/Valence_bond_theory

    In 1916, Kossel put forth his theory of the ionic chemical bond , also independently advanced in the same year by Gilbert N. Lewis. [3] [4] Walther Kossel put forward a theory similar to Lewis' only his model assumed complete transfers of electrons between atoms, and was thus a model of ionic bonding.