Chapter 9

Lattice Energy: The energy released when oppositely charged ions come together OR the energy absorbed to break apart an ionic compound into its ions 

Bond length: the distance between the two 

Bond Energy: energy needed to break a bond between atoms 

Optimal distance to achieve lower overall energy of the system 

Properties of Covalent Bonds 

Bond length: distance btwn nuclei of the bonded atoms

Bond energy: energy needed to overcome the attraction between the nuclei and the shared electrons—energy required to break a bond. The stronger the bond, the higher the bond energy. 

Bond order: the number of electron pairs being shared by a given pair of electrons