CHEM 1300 Lecture Notes - Lecture 11: Lattice Energy, Ionic Bonding, Elementary Charge

• School: University of Manitoba
• Department: Chemistry
• Course: CHEM 1300
• Professor: Elena Smirnova

Document Summary

1. list the following atoms in order of decreasing atomic size. 2. list the following atoms in order of increasing ionization energy. It is the energy change when an electron is added to an atom. One type of bond is the ionic bond. ionic bonds form because of the electrostatic attraction between a positive cation and a negative anion. The energy of attraction can be approximated with the equation. *don"t have to memorize, its on the formula sheet . R is the distance between two ions is the electron charge of the cation is the electron charge of the anion q1 q2. The lattice energy is the energy released when an ionic solid decomposes into gaseous ions. (the process is called sublimation) (g) e = le = 769 kj/mol. The lattice energy depends on electrical and the sizes of the ions. usually, the greater the charge of the cations and anions, the greater the lattice energy.