| A | B |
|---|
| chemical bond | a strong attractive force between atoms in a molecule |
| covalent bond | a bond formed by two atoms sharing one or more pairs of electrons |
| ionic bond | a bond between oppositely charged ions. |
| metallic bond | bonding in solid metals where the bonding electrons flow freely throughout the substance |
| Lewis symbol | chemical symbol for an element surrounded by dots representing valence electrons |
| octet rule | bonded atoms tend to possess or share a total of 8 valence electrons |
| lattice energy | energy required to completely separate the ions in an ionic compound |
| Lewis structures | a representation of a covalent compound using Lewis symbols and lines to represent shared pairs of electrons |
| single bond | a covalent bond involving only one pair of shared electrons |
| double bond | a covalent bond involving two pairs of shared electrons |
| triple bond | a covalent bond involving three pairs of shared electrons |
| bond length | the distance between the centers of two bonded atoms |
| bond polarity | a measure of the degree to which electrons are shared unequally in a chemical bond. |
| nonpolar covalent bond | a covalent bond in which the electrons are shared equally |
| polar covalent bond | a covalent bond in which the electrons are not shared equally |
| electronegativity | the ability of an atom to attract electrons toward itself |
| polar molecule | a molecule that has a dipole moment |
| dipole moment | a measure of the separation and magnitude of the positive and negative charges in polar molecules |
| formal charge | the number of valence electrons an atom normally has minus the number of electrons assigned to it in the Lewis structure |
| resonance structures | multiple structures of one molecule that are equivalent to each other |
| bond enthalpy | the enthalpy change required to break a bond |
