Ionic Bond Strength and Lattice Energy. An ionic compound is stable because of the electrostatic attraction between its positive and negative ions. The lattice energy of a compound is a measure of the strength of this attraction.
The strength of a covalent bond is measured by its bond dissociation energy, that is, the amount of energy required to break that particular bond in a mole of molecules. Multiple bonds are stronger than single bonds between the same atoms. The enthalpy of a reaction can be estimated based on the energy input required to break bonds and the energy released when new bonds are formed. For ionic bonds, the lattice energy is the energy required to separate one mole of a compound into its gas phase ions. Lattice energy increases for ions with higher charges and shorter distances between ions. Lattice energies are often calculated using the Born-Haber cycle, a thermochemical cycle including all of the energetic steps involved in converting elements into an ionic compound.
ionic compounds have. high melting points. what dissolves easily in water. ionic compounds. crystal lattice. the regular pattern in which a crystal is arranged. ion. a charged particle that forms when an atom or group of atoms gains or loses one or more electrons. ionic bond.
when the # of protons and electrons are not =. atoms become charged particles called IONs. metal atoms =. few valence electrons. metal atoms form. positive ions. for an atom to lose an electron. the attraction between the electron and the protons has to be broken. small amount of energy.