Calculate the electron affinity of Cl from the following data for NaCl, and compare your result with the value in Appendix B-1 : Cl2 bond energy = 239 kJ/mol; Hf (NaCl) = -413 kJ/mol; Hsub(Na) = 109 kJ/mol; IE(Na) = 5.14 eV; and r+ + r- = 281 pm.
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.
Calculate the
data for NaCl, and compare your result with the
value in Appendix B-1 : Cl2 bond energy = 239 kJ/mol;
Hf (NaCl) = -413 kJ/mol; Hsub(Na) = 109 kJ/mol;
IE(Na) = 5.14 eV; and r+ + r- = 281 pm.
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