at for vels 7.15 On the basis of the same kind of calculation as in Problem 7.14, but for general Z, account for the first Tonization energies of the ions Li, Be2, B*, and C. The experimental values are 73.5, 153, 258, and 389 eV, respectively. uate che P) at 78.1 *7.16 The first few S terms of helium lie at the following wavenumbers: 1s 'S: 0; 1s'2s' 1'S: 166 272 cm-: 1s'2s S: 159 850 cm; 1s'3s' 'S: 184 859 cm; 1s'3s' S:
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.
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p levels
valuate
7.15 On the basis of the same kind of calculation as in
Problem 7.14, but for general Z, account for the first
ionization energies of the 1ons Li, Be, B*, and C*. The
experimental values are 73.5, 153, 258, and 389 eV,
respectively.
in the
*7.16 The first few S terms of helium lie at the following
wavenumbers: 1s 'S: 0; 1s'2s' IS: 166 272 cm: 1s'2s S:
159 850 cm; 1s'3s' 'S: 184 859 cm; 1s'3s' 3S:
om is
.,0) at
1978.1](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fc3b9e68a-ea25-4ad5-b988-5b5167e9d9f9%2F2a531c07-29ae-4427-b0be-69f3c673ab34%2F1wisu3_processed.jpeg&w=3840&q=75)
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