A: If you are told that a certain metal element has a simple cubic unit cell structure, what additional information do you need in order calculate the atomic radius for that element? Select all correct answers. (You can assume that you already have the information necessary to do metric unit prefix conversions.) Group of answer choices number of particles in the unit cell the relationship between the unit cell edge length and atomic radius Avogadro's number the element's enthalpy of fusion element identity or molar mass density (g/cm3) B:Out of the following defects, which one must occur in pairs for ionic compounds with 1:1 stoichiometries? Group of answer choices Schottky Substitution Frenkel Interstitial C: Consider this x-ray diffraction pattern for the mineral magnetite (Fe3O4) and Bragg's Law. Which of the following statements is true? (HINTs: Since all of these peaks result from the same x-ray scan, the same x-ray wavelength applies to all peaks in this pattern. You may also assume that the same order (n) applies to all peaks in this pattern.) Group of answer choices The atom plane spacing (d) that gives the (220) peak is smaller than that which gives the (400) peak. If this sample was scanned with an x-ray beam of shorter wavelength, the peaks would be in a different order. The labeled peak that represents the largest atom plane spacing (d) is the (440) one. The atom plane spacing (d) that gives the (400) peak is larger than that which gives the (511) peak.
A: If you are told that a certain metal element has a simple cubic unit cell structure, what additional information do you need in order calculate the atomic radius for that element? Select all correct answers. (You can assume that you already have the information necessary to do metric unit prefix conversions.) Group of answer choices number of particles in the unit cell the relationship between the unit cell edge length and atomic radius Avogadro's number the element's enthalpy of fusion element identity or molar mass density (g/cm3) B:Out of the following defects, which one must occur in pairs for ionic compounds with 1:1 stoichiometries? Group of answer choices Schottky Substitution Frenkel Interstitial C: Consider this x-ray diffraction pattern for the mineral magnetite (Fe3O4) and Bragg's Law. Which of the following statements is true? (HINTs: Since all of these peaks result from the same x-ray scan, the same x-ray wavelength applies to all peaks in this pattern. You may also assume that the same order (n) applies to all peaks in this pattern.) Group of answer choices The atom plane spacing (d) that gives the (220) peak is smaller than that which gives the (400) peak. If this sample was scanned with an x-ray beam of shorter wavelength, the peaks would be in a different order. The labeled peak that represents the largest atom plane spacing (d) is the (440) one. The atom plane spacing (d) that gives the (400) peak is larger than that which gives the (511) peak.
Chemistry: The Molecular Science
5th Edition
ISBN:9781285199047
Author:John W. Moore, Conrad L. Stanitski
Publisher:John W. Moore, Conrad L. Stanitski
Chapter9: Liquids, Solids, And Materials
Section: Chapter Questions
Problem 120QRT
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A: If you are told that a certain metal element has a simple cubic unit cell structure, what additional information do you need in order calculate the atomic radius for that element? Select all correct answers. (You can assume that you already have the information necessary to do metric unit prefix conversions.)
Group of answer choices
Avogadro's number
number of particles in the unit cell
the relationship between the unit cell edge length and atomic radius
the element's enthalpy of fusion
element identity or molar mass
density (g/cm3)
B:Out of the following defects, which one must occur in pairs for ionic compounds with 1:1 stoichiometries?
Group of answer choices
Schottky
Substitution
Frenkel
Interstitial
C: Consider this x-ray diffraction pattern for the mineral magnetite (Fe3O4) and Bragg's Law. Which of the following statements is true? (HINTs: Since all of these peaks result from the same x-ray scan, the same x-ray wavelength applies to all peaks in this pattern. You may also assume that the same order (n) applies to all peaks in this pattern.)
Group of answer choices
The atom plane spacing (d) that gives the (220) peak is smaller than that which gives the (400) peak.
If this sample was scanned with an x-ray beam of shorter wavelength, the peaks would be in a different order.
The labeled peak that represents the largest atom plane spacing (d) is the (440) one.
The atom plane spacing (d) that gives the (400) peak is larger than that which gives the (511) peak.
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