Quizlet Chemistry Chapter 11 Vocabulary

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  1. covalent bond: A chemical bond formed between two atoms by sharing a pair of electrons.
  2. dipole: a molecule that is electrically asymmetrical, causing it to be oppositely charged at two points.
  3. electronegativity: the relative attraction that an atom has for a pair of shared electrons in a covalent bond.
  4. ionic bond: the chemical bond between a positively charged ion and a negatively charged ion.
  5. ionization energy: the energy required to move an electron from an atom, an ion, or a molecule.
  6. Lewis structure: a method of indicating the covalent bonds between atoms in a molecule or an ion such that a pair of electrons (:) represents the valence electrons forming the covalent bond.
  7. linear structure: in the VSEPR model, an arrangement where the pairs of electrons are arranged 180 degrees apart for maximum separation.
  8. nonpolar covalent bond: a covalent bond between two atoms with the same electronegativity value; thus, the electrons are shared equally between the two atoms.
  9. polar covalent bond: a covalent bond between two atoms with differing electronegativity values, resulting in unequal sharing of bonding electrons.
  10. resonance structure: a molecule or ion that has multiple Lewis structures.
  11. tetrahedral structure: an arrangement of the VSEPR model where four pairs of electrons are placed 109.5 degrees apart to form a tetrahedron.
  12. trigonal planar: an arrangement of atoms in the VSEPR model where the three pairs of electrons are placed 120 degrees apart on a flat plane.