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Identify the element that corresponds to each of the simplified photoelectron spectral data given below. (Energy data taken from D. A. Shirley, R. L Martin, S. P. Kowalczyk. F. R. McFeely, and L. Ley: ″Core-electron binding energies of the first thirty elements, ″ Physical Review B, Vol. 15, pp. 544-552, 1977.) (a) There are peaks at energies of 64.8 and 5.4 eV, corresponding to 2 and 1 electrons, respectively. (b) There are peaks at energies of 3614, 384, 301, 40.9, 24.7, and 4.34 eV, corresponding to 2, 2, 6, 2, 6, and 1 electrons, respectively. (c) There are peaks at energies of 4494, 503, 404, 56.4, 33.6, 8.01, and 6.65 eV, corresponding to 2, 2, 6, 2, 6, 1, and 2 electrons, respectively.

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Chemistry & Chemical Reactivity

9th Edition
John C. Kotz + 3 others
Publisher: Cengage Learning
ISBN: 9781133949640

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Section
BuyFindarrow_forward

Chemistry & Chemical Reactivity

9th Edition
John C. Kotz + 3 others
Publisher: Cengage Learning
ISBN: 9781133949640
Chapter 7, Problem 33PS
Textbook Problem
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Identify the element that corresponds to each of the simplified photoelectron spectral data given below. (Energy data taken from D. A. Shirley, R. L Martin, S. P. Kowalczyk. F. R. McFeely, and L. Ley: ″Core-electron binding energies of the first thirty elements, ″ Physical Review B, Vol. 15, pp. 544-552, 1977.)

  1. (a) There are peaks at energies of 64.8 and 5.4 eV, corresponding to 2 and 1 electrons, respectively.
  2. (b) There are peaks at energies of 3614, 384, 301, 40.9, 24.7, and 4.34 eV, corresponding to 2, 2, 6, 2, 6, and 1 electrons, respectively.
  3. (c) There are peaks at energies of 4494, 503, 404, 56.4, 33.6, 8.01, and 6.65 eV, corresponding to 2, 2, 6, 2, 6, 1, and 2 electrons, respectively.

a)

Interpretation Introduction

Interpretation:

The element that corresponds to each of the given simplified photoelectron spectral data has to be identified.

Concept Introduction:

Photoelectron spectroscopy: This is to energy measurement of electrons emitted from solids, gases or liquids by the photoelectric effect, in order to determine the binding energies of electrons in a substance. Photoelectron spectroscopy using the experimental technique that provides information about the energies of electrons in atoms and molecules and yields evidence in favor of our modern orbital model of electrons in atoms. In this technique sample atoms are bombarded with high-energy electron magnetic radiation.         

Key to understanding PES is that all of the ejected electrons results from bombarding the atom with photons of the same energy (hv). The energy goes into ejecting the electrons from the atom corresponding to the ionization energy (IE) of the electron with the remainder going into kinetic energy of the electron. The formula of photoelectron spectroscopy hv= IE + KE (electron)

Electron attachment enthalpy: ΔEAH is defined as the enthalpy change occurring when a gaseous atom adds an electron forming a gaseous anion.

  A(g)+e-A-(g)----ElectronattachmententhalpyEAH

Explanation of Solution

  AtomicnumberofLithium(Li)=3spdfwith orbtital notation=Li[1s22s12p0]Orbital filling method       

b)

Interpretation Introduction

Interpretation:

The element that corresponds to each of the given simplified photoelectron spectral data has to be identified.

Concept Introduction:

Photoelectron spectroscopy: This is to energy measurement of electrons emitted from solids, gases or liquids by the photoelectric effect, in order to determine the binding energies of electrons in a substance. Photoelectron spectroscopy using the experimental technique that provides information about the energies of electrons in atoms and molecules and yields evidence in favor of our modern orbital model of electrons in atoms. In this technique sample atoms are bombarded with high-energy electron magnetic radiation.         

Key to understanding PES is that all of the ejected electrons results from bombarding the atom with photons of the same energy (hv). The energy goes into ejecting the electrons from the atom corresponding to the ionization energy (IE) of the electron with the remainder going into kinetic energy of the electron. The formula of photoelectron spectroscopy hv= IE + KE (electron)

Electron attachment enthalpy: ΔEAH is defined as the enthalpy change occurring when a gaseous atom adds an electron forming a gaseous anion.

  A(g)+e-A-(g)----ElectronattachmententhalpyEAH

c)

Interpretation Introduction

Interpretation:

The element that corresponds to each of the given simplified photoelectron spectral data has to be identified.

Concept Introduction:

Photoelectron spectroscopy: This is to energy measurement of electrons emitted from solids, gases or liquids by the photoelectric effect, in order to determine the binding energies of electrons in a substance. Photoelectron spectroscopy using the experimental technique that provides information about the energies of electrons in atoms and molecules and yields evidence in favor of our modern orbital model of electrons in atoms. In this technique sample atoms are bombarded with high-energy electron magnetic radiation.         

Key to understanding PES is that all of the ejected electrons results from bombarding the atom with photons of the same energy (hv). The energy goes into ejecting the electrons from the atom corresponding to the ionization energy (IE) of the electron with the remainder going into kinetic energy of the electron. The formula of photoelectron spectroscopy hv= IE + KE (electron)

Electron attachment enthalpy: ΔEAH is defined as the enthalpy change occurring when a gaseous atom adds an electron forming a gaseous anion.

  A(g)+e-A-(g)----ElectronattachmententhalpyEAH

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Chemistry & Chemical Reactivity
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(a) Which...Ch. 7 - Compare the elements B. Al, C, and Si. (a) Which...Ch. 7 - Explain each answer briefly. (a) Place the...Ch. 7 - Explain each answer briefly. (a) Rank the...Ch. 7 - Identify the element that corresponds to each of...Ch. 7 - Identify the element that corresponds to each of...Ch. 7 - Explain why the photoelectron spectra of hydrogen...Ch. 7 - Sketch the major features (number of peaks and...Ch. 7 - These questions are not designated as to type or...Ch. 7 - The deep blue color of sapphires comes from the...Ch. 7 - Using an orbital box diagram and noble gas...Ch. 7 - The rare earth elements, or lanthanides, commonly...Ch. 7 - A neutral atom has two electrons with n = 1, eight...Ch. 7 - Element 109, now named meitnerium (in honor of the...Ch. 7 - Which of the following is not an allowable set of...Ch. 7 - A possible excited state for the H atom has an...Ch. 7 - The magnet in the following photo is made from...Ch. 7 - Name the element corresponding to each...Ch. 7 - Arrange the following atoms in order of increasing...Ch. 7 - Rank the following in order of increasing...Ch. 7 - Answer the questions below about the elements A...Ch. 7 - Answer (he following questions about the elements...Ch. 7 - Which of the following ions are unlikely to be...Ch. 7 - Place the following ions in order of decreasing...Ch. 7 - Answer each of the following questions: (a) Of the...Ch. 7 - The following are isoelectronic species: Cl, K+,...Ch. 7 - Compare the elements Na. 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