The Chemistry and Life box in Section 6.7 described the techniquescalled NMR and MRI. (a) Instruments for obtainingMRI data are typically labeled with a frequency, such as 600MHz. In what region of the electromagnetic spectrum doesa photon with this frequency belong? (b) What is the valueof ΔE in Figure 6.27 that would correspond to the absorptionof a photon of radiation with frequency 450 MHz? (c) Whenthe 450-MHz photon is absorbed, does it change the spin ofthe electron or the proton on a hydrogen atom?
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.
The Chemistry and Life box in Section 6.7 described the techniques
called NMR and MRI. (a) Instruments for obtaining
MRI data are typically labeled with a frequency, such as 600
MHz. In what region of the
a photon with this frequency belong? (b) What is the value
of ΔE in Figure 6.27 that would correspond to the absorption
of a photon of radiation with frequency 450 MHz? (c) When
the 450-MHz photon is absorbed, does it change the spin of
the electron or the proton on a hydrogen atom?
Trending now
This is a popular solution!
Step by step
Solved in 3 steps
