5. Which of the following is the electron configuration of 02-? a. 1s 22 2 p6 b. 1s 252 2p* c. 1s 2 2 pl d. 1s2 2s 2p 6. What is the electronic configuration for the 26 Fe+2: 26FE+3: 29Cur1: 29Cu+2 : 7. Write the electronic configuration of 24Cr: 24Cr3+: 24Cr6+: a. Does 24Cró+ paramagnetic or diamagnetic cation? b. Give the four quantum numbers of the last electron in 24Cr 24CR3+ 24Cró+. c. Among of the above substances which is the most stable? Justify.

5. Which of the following is the electron configuration of 02-? a. 1s 22 2 p6 b. 1s 252 2p* c. 1s 2 2 pl d. 1s2 2s 2p 6. What is the electronic configuration for the 26 Fe+2: 26FE+3: 29Cur1: 29Cu+2 : 7. Write the electronic configuration of 24Cr: 24Cr3+: 24Cr6+: a. Does 24Cró+ paramagnetic or diamagnetic cation? b. Give the four quantum numbers of the last electron in 24Cr 24CR3+ 24Cró+. c. Among of the above substances which is the most stable? Justify.

Chemistry: The Molecular Science

5th Edition

ISBN:9781285199047

Author:John W. Moore, Conrad L. Stanitski

Publisher:John W. Moore, Conrad L. Stanitski

Chapter5: Electron Configurations And The Periodic Table

Section: Chapter Questions

Problem 76QRT

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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 corresponding to 1079, 70.8, 38.0, 5.14 eV, corresponding to 2, 2, 6, and 1 electrons, respectively. (b) There are peaks at energies corresponding to 4043, 443, 351, 48.4, 30.1, and 6.11 eV, corresponding to 2, 2, 6, 2, 6, and 2 electrons, respectively. (c) There are peaks at energies corresponding to 5475, 638, 524, 77, 47, 12. and 7.3 eV, corresponding to 2, 2, 6, 2, 6, 3, and 2 electrons, respectively.
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