electrons and bonding

    Cards (20)

    • Pi bond (π bond)
      A bond formed by the sideways overlap of two p orbitals, containing two electrons and with the electron density concentrated above and below the line joining the nuclei of the bonding atoms.
    • Polyatomic ion
      An ion containing more than one atom.
    • Sigma bond (σ bond)
      A bond formed by the overlap of one orbital from each bonding atom, consisting of two electrons and with the electron density centred around a line directly between the nuclei of the two atoms.
    • Lone pair
      An outer shell pair of electrons that is not involved in chemical bonding
    • Metallic bonding
      The electrostatic attraction between positive metal ions and delocalised electrons
    • Anion
      A negatively charged ion with more electrons than protons
    • Atomic orbital
      A region around the nucleus that can hold up to two electrons, with opposite spins
    • Binary compound
      A compound containing two elements only
    • Bonded pair
      A pair of electrons shared between two atoms to make a covalent bond
    • Cation
      A positively charged ion with fewer electrons than protons
    • Coordinate bond
      A shared pair of electrons in which the bonded pair has been provided by one of the bonding atoms only. Also called a dative covalent bond
    • Covalent bonding
      The strong electrostatic attraction between a shared pair of electrons and the nuclei of the bonded atoms
    • Dative covalent bond
      A shared pair of electrons in which the bonded pair has been provided by one of the bonding atoms only: also called a coordinate bond
    • Delocalised electrons
      Electrons that are shared between more than two atoms
    • Electron configuration
      A shorthand method for showing how electrons occupy sub-shells in an atom
    • Giant covalent lattice
      A three-dimensional structure of atoms, bonded together by strong covalent bonds
    • Giant ionic lattice
      A three-dimensional structure of oppositely charged ions, bonded together by strong ionic bonds
    • Giant metallic lattice
      A three-dimensional structure of positive ions and delocalised electrons, bonded together by strong metallic bonds
    • Electronegativity
      The ability of an atom to attract electrons in a covalent bond
    • Describe what is meant by the term ionic lattice, in terms of the type and arrangement of particles present
      Repeating pattern of oppositely charged ions
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