Chemistry & Chemical Reactivity
Chemistry & Chemical Reactivity
10th Edition
ISBN: 9781337399074
Author: John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher: Cengage Learning
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Chapter 7, Problem 70SCQ

The ionization of the hydrogen atom can be calculated from Bohr's equation for the electron energy.

E = −(NARhc)(Z2/n2)

where NARhc =1312 kJ/mol and Z is the atomic number. Let us use this approach to calculate a possible ionization energy for helium. First, assume the electrons of the He experience the full 2+ nuclear charge. This gives us the upper limit for the ionization energy. Next, assume one electron of He completely screens the nuclear charge from the other electrons, so Z = 1. This gives us a lower limit to the ionization energy*. Compare these calculated values for the upper and lower limits to the experimental value of 2372.3 kJ/mol. What does this tell us about the ability of one electron to screen the nuclear charge?

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Chapter 7 Solutions

Chemistry & Chemical Reactivity

Ch. 7.3 - (a) What element has the configuration...Ch. 7.3 - Write one possible set of quantum numbers for the...Ch. 7.3 - Using the periodic table and without looking at...Ch. 7.4 - Prob. 7.4CYUCh. 7.5 - Without looking at the figures for the periodic...Ch. 7.6 - The most common oxidation state of a rare earth...Ch. 7.6 - Prob. 1.2ACPCh. 7.6 - Prob. 1.3ACPCh. 7.6 - Use the atomic radii of scandium, yttrium,...Ch. 7.6 - Prob. 1.5ACP
Ch. 7.6 - Prob. 1.6ACPCh. 7.6 - Give the electron configurations for iron and the...Ch. 7.6 - Prob. 2.2ACPCh. 7.6 - Prob. 2.3ACPCh. 7.6 - Prob. 2.4ACPCh. 7 - Write the electron configurations for P and CI...Ch. 7 - Write the electron configurations for Mg and Ar...Ch. 7 - Using spdf notation, write the electron...Ch. 7 - Using spdf notation, give the electron...Ch. 7 - Prob. 5PSCh. 7 - Prob. 6PSCh. 7 - Use noble gas and spdf notations to depict...Ch. 7 - The lanthanides, once called the rare earth...Ch. 7 - Prob. 9PSCh. 7 - Prob. 10PSCh. 7 - What is the maximum number of electrons that can...Ch. 7 - What is the maximum number of electrons that can...Ch. 7 - Depict the electron configuration for magnesium...Ch. 7 - Depict the electron configuration for phosphorus...Ch. 7 - Using an orbital box diagram and noble gas...Ch. 7 - Using an orbital box diagram and noble gas...Ch. 7 - Prob. 17PSCh. 7 - Which of the following statements correctly...Ch. 7 - Prob. 19PSCh. 7 - Prob. 20PSCh. 7 - Using orbital box diagrams, depict an electron...Ch. 7 - Prob. 22PSCh. 7 - Prob. 23PSCh. 7 - Using orbital box diagrams and noble gas notation,...Ch. 7 - Manganese is found as MnO2 in deep ocean deposits....Ch. 7 - One compound found in alkaline batteries is NiOOH,...Ch. 7 - Prob. 27PSCh. 7 - Arrange the following elements in order of...Ch. 7 - Prob. 29PSCh. 7 - Prob. 30PSCh. 7 - Which of the following groups of elements is...Ch. 7 - Arrange the following atoms in order of increasing...Ch. 7 - Compare the elements Na, Mg, O, and P. (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 - Prob. 44GQCh. 7 - Prob. 45GQCh. 7 - Prob. 46GQCh. 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 - Prob. 52GQCh. 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 - Prob. 56GQCh. 7 - Answer each of the following questions: (a) Of the...Ch. 7 - Prob. 58GQCh. 7 - Prob. 59GQCh. 7 - Two elements in the second transition series (Y...Ch. 7 - Prob. 61GQCh. 7 - The configuration of an element is given here. (a)...Ch. 7 - Answer the questions below about the elements A...Ch. 7 - Answer the questions below concerning ground state...Ch. 7 - Nickel(II) formate [Ni(HCO2)2] is widely used as a...Ch. 7 - Spinets are solids with the general formula M2+...Ch. 7 - The following questions use concepts from this and...Ch. 7 - Which ions in the following list are not likely to...Ch. 7 - Answer the following questions about first...Ch. 7 - The ionization of the hydrogen atom can be...Ch. 7 - Compare the configurations below with two...Ch. 7 - Prob. 72SCQCh. 7 - Write electron configurations to show the first...Ch. 7 - Prob. 74SCQCh. 7 - (a) Explain why the sizes of atoms change when...Ch. 7 - Which of the following elements has the greatest...Ch. 7 - Prob. 77SCQCh. 7 - Prob. 78SCQCh. 7 - The energies of the orbitals in many elements have...Ch. 7 - The ionization energies for the removal of the...Ch. 7 - Using your knowledge of the trends in element...Ch. 7 - Prob. 82SCQCh. 7 - Prob. 83SCQCh. 7 - Prob. 84SCQCh. 7 - Thionyl chloride. SOCl2, is an important...Ch. 7 - Prob. 86SCQCh. 7 - Slaters rules are a way to estimate the effective...
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