
CHEMISTRY-TEXT
8th Edition
ISBN: 9780134856230
Author: Robinson
Publisher: PEARSON
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Chapter 3, Problem 3.104SP
Interpretation Introduction
Interpretation:
The sample out of
Concept introduction:
The study of interactions between matter and light, and the measurements and reactions of radiation intensity and wavelength is called spectrometry.
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The electron affinity of thulium was measured by a technique called laser photodetachment electron spectroscopy. In this technique, a gaseous beam of anions of an element is bombarded with photons from a laser. The photons knock electrons off some of the anions, and the energies of the emitted electrons are detected. The incident radiation had a wavelength of 1064 nm, and the emitted electrons had an energy of 0.137 eV. Although the analysis is more complicated, we can obtain an estimate of the electron affinity from the energy difference between the photons and the emitted electrons. What is the electron affinity of thulium in electron volts and in kilojoules per mole?
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Chapter 3 Solutions
CHEMISTRY-TEXT
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