Absorption of an ultraviolet wavelength photon by a molecule causes A. a promotion of an electron to a higher energy level. B. a change in orientation of nuclear magnetic moment in the presence of a magnetic field. C. A change in quantized vibrational energy. D. A change in quantized rotational energy. E. Fragmentation of a molecule. Absorption of a radio wavelength photon by a molecule causes A. a promotion of an electron to a higher energy level. B. a change in orientation of nuclear magnetic moment in the presence of a magnetic field. C. A change in quantized vibrational energy. D. A change in quantized rotational energy. E. Fragmentation of a molecule. In modern NMR spectroscopy methods requiring Fourier Transform (FT), which of the following best describes the experiment? A. The radio frequency is held constant while the magnet field is swept. B. Both the magnet field and the radio frequency are swept. C. The magnetic field is held constant while the radio frequency is swept. D. The magnetic field is held constant while the radio frequency is applied in a short pulse.

Absorption of an ultraviolet wavelength photon by a molecule causes A. a promotion of an electron to a higher energy level. B. a change in orientation of nuclear magnetic moment in the presence of a magnetic field. C. A change in quantized vibrational energy. D. A change in quantized rotational energy. E. Fragmentation of a molecule. Absorption of a radio wavelength photon by a molecule causes A. a promotion of an electron to a higher energy level. B. a change in orientation of nuclear magnetic moment in the presence of a magnetic field. C. A change in quantized vibrational energy. D. A change in quantized rotational energy. E. Fragmentation of a molecule. In modern NMR spectroscopy methods requiring Fourier Transform (FT), which of the following best describes the experiment? A. The radio frequency is held constant while the magnet field is swept. B. Both the magnet field and the radio frequency are swept. C. The magnetic field is held constant while the radio frequency is swept. D. The magnetic field is held constant while the radio frequency is applied in a short pulse.

Chemistry: Principles and Reactions

8th Edition

ISBN:9781305079373

Author:William L. Masterton, Cecile N. Hurley

Publisher:William L. Masterton, Cecile N. Hurley

Chapter6: Electronic Structure And The Periodic Table

Section: Chapter Questions

Problem 66QAP: Consider the following transitions 1. n=3 to n=1 2. n=2 to n=33. n=4 to n=34. n=3 to n=5(a) For...

See similar textbooks

Similar questions

Suppose an atom in an excited state can return to the ground state in two steps. It first falls to an intermediate state, emitting radiation of wavelength 1 , and then to the ground state, emitting radiation of wavelength 2 . The same atom can also return to the ground state in one step, with the emission of radiation of wavelength . How are 1,2, and related? How are the frequencies of the three radiations related?
Consider Figure 11.4 and choose the correct phrase: As the vibrational quantum number increases, the extension of the vibration increases/decreases/stays the same while the average length of the oscillator itself increases/decreases/stays the same. Explain your choices.
An Mg atom is in the excited electron configuration [Ne]4s2. What are the possible term symbols for this atom?
The distant galaxy called Cygnus A is one of the strongest sources of radio waves reaching Earth. The distance of this galaxy from Earth is 31024m . How long (in years) does it take a radio wave of wavelength 10 m to reach Earth? What is the frequency of this radio wave?
What is the difference between continuous and discrete spectra?
Chapter 3 introduced the concept of a double bond between carbon atoms, represented by C=C , with a length near 1.34 Å. The motion of an electron in such a bond can be treated crudely as motion in a one-dimensional box. Calculate the energy of an electron in each of its three lowest allowed states if it is confined to move in a one-dimensional box of length 1.34 Å. Calculate the wavelength of light necessary to excite the electron from its ground state to the first excited state.
What is the frequency of light having the following wavelengths? a 1.00m b 4.77105m c 7894A d 1.903103m
Explain why X-ray lasers would be extremely difficult to build.
What is a rotating frame of reference?
Electron microscopes operate on the fact that electrons act as waves. A typical electron kinetic energy is 100keV 1eV=1.6021019J. What is the wavelength of such an electron? Ignore relativistic effects.
Calculate the energy of photon having: a a wavelength of 5.42106m; b a frequency of 6.691013s1; c a wavelength of 3.27nm; d a frequency of 106.5MHz 1Hz=1hertz=1s1; this unit is often used for frequency; e a wavenumber of 4321cm1.
The following are sets of rotational quantum numbers (J,MJ,K). Label each indicated transition as either allowed or forbidden. Hint: Remember the rules for allowed values of the various quantum numbers. a (5,4,0)(3,6,0)b (8,2,2)(9,2,2) c (7,4,2)(7,4,2)d (4,2,5)(3,2,5)