Ch.6 - Ionic Compounds: Periodic Trends and Bonding Theory
All textbooksMcMurry 8th EditionCh.6 - Ionic Compounds: Periodic Trends and Bonding TheoryProblem 122
Chapter 6, Problem 122
Which atom in each of the following pairs has a larger radius? (a) Na or K (b) V or Ta (c) V or Zn (d) Li or Ba
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Textbook Question
The ionization energy of an atom can be measured by photo-electron spectroscopy, in which light of wavelength l is directed at an atom, causing an electron to be ejected. The kinetic energy of the ejected electron 1EK2 is measured by determining its velocity, v since EK = 1/2 mv2. The Ei is then calculated using the relationship that the energy of the inci-dent light equals the sum of Ei plus EK.
(a) What is the ionization energy of rubidium atoms in kilo-joules per mole if light with l = 58.4 nm produces elec-trons with a velocity of 2.450 * 106m/s? (The mass of an electron is 9.109 * 10-31 kg.)
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Textbook Question
Take a guess. What do you think is a likely ground-state electron configuration for the sodium ion, Na+, formed by loss of an electron from a neutral sodium atom?
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Textbook Question
Order the following atoms according to increasing atomic radius: S, F, O.
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Textbook Question
Which atom in each of the following pairs has a larger radius?
(a) C or Ge
(b) Ni or Pt
(c) Sn or I
(d) Na or Rb
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Textbook Question
One method for calculating Zeff is to use the equation
where E is the energy necessary to remove an electron from an atom and n is the principal quantum number of the elec-tron. Use this equation to calculate Zeff values for the highest-energy electrons in potassium (E = 418.8 kJ/mol) and krypton (E = 1350.7 kJ/mol).
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Textbook Question
At 0 °C, the density of liquid water is 0.9998 g/mL and the
value of Kw is 1.14 * 10-15. What fraction of the molecules
in liquid water are dissociated at 0 °C? What is the percent dissociation
at 0 °C? What is the pH of a neutral solution at 0 °C?
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