910 834 788 788 732 701 691 682 657 LiCI NaCl KCI RbCl CsCl NaF NaCl NaBr Nal Increasing cation radius Increasing anion radius Activate Windows A Figure 8.5 Periodic trends in lattice energy as a function of cation or anion radius,ctivate Windo Lattice energy (kJ /mol) Lattice energy (kJ /mol)
Electronic Transitions and Spectroscopy
The term “electronic” connotes electron, and the term “transition” implies transformation. In a molecule, the electrons move from a lower to a higher energy state due to excitation. The two energy states, the ground state and the excited state are the lowest and the highest energy states, respectively. An energy change is observed with this transition, which depicts the various data related to the molecule.
Photoelectron Spectroscopy
Photoelectron spectroscopy (PES) is a part of experimental chemistry. It is a technique used in laboratories that involves projecting intense beams of radiation on a sample element. In response, the element ejects electrons for which the relative energies are measured.
Using this figure, find the most likely range of values for the
lattice energy of KF.
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