Chemistry: Structure and Properties (2nd Edition)
2nd Edition
ISBN: 9780134293936
Author: Nivaldo J. Tro
Publisher: PEARSON
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Chapter 12, Problem 88E
Interpretation Introduction
To determine: The wavelength of X-ray given off when e jumps from 2p to 1s in Cu atom.
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element
1
2
3
description
Element 1 is a hard dark-red solid. A 10. g cube of it is set on a hot plate.
After 10 minutes, the temperature of the top of the cube has risen by less
than 1 °C.
Element 2 is a moderately soft silvery-gray solid. A 5 cm x 5 cm square
of it, only 1 mm thick, is flexed slightly by hand. The sheet snaps in half.
Element 3 is a moderately soft silvery-gray solid. A small cube of it is put
into a ceramic crucible and heated strongly. It melts about not far above
room temperature.
metal or nonmetal?
O metal
O nonmetal
O (can't decide)
O metalk
O nonmetal
O (can't decide)
O metal
O nonmetal
O (can't decide)
Given Cs (262 pm), Tl (171 pm), and B (88 pm) with their noted atomic radii, which atom is most likely to act as an interstitial impurity in an Sn lattice (Sn atomic radius = 141 pm)? Why?
Which of the following statements is TRUE?
Select one:
CCl4(s) has a higher melting point than Fe(s).
K2O is a molecular solid.
The second ionization energy (IE2) for strontium is represented by the equation Sr(s) → Sr2+(g) + 2e-
Glass is an example of a crystalline solid.
The conduction band for insulators is always vacant.
Chapter 12 Solutions
Chemistry: Structure and Properties (2nd Edition)
Ch. 12 - What is graphene? Why is graphene unique?Ch. 12 - Prob. 2ECh. 12 - What is a crystalline lattice? How is the lattice...Ch. 12 - Prob. 4ECh. 12 - Prob. 5ECh. 12 - What is the difference between hexagonal closest...Ch. 12 - What are the three basic types of solids and the...Ch. 12 - Prob. 8ECh. 12 - What kinds of forces hold each of the three basic...Ch. 12 - Prob. 10E
Ch. 12 - In an ionic compound, how are the relative sizes...Ch. 12 - Prob. 12ECh. 12 - Show how the fluorite structure accommodates a...Ch. 12 - Prob. 14ECh. 12 - Prob. 15ECh. 12 - Prob. 16ECh. 12 - Prob. 17ECh. 12 - Prob. 18ECh. 12 - Prob. 19ECh. 12 - Describe the difference between vitreous silica...Ch. 12 - Prob. 21ECh. 12 - Prob. 22ECh. 12 - Prob. 23ECh. 12 - Prob. 24ECh. 12 - What is a polymer? What is the difference between...Ch. 12 - Prob. 26ECh. 12 - Prob. 27ECh. 12 - An X-ray beam of unknown wavelength is diffracted...Ch. 12 - Prob. 29ECh. 12 - Determine the coordination number for each...Ch. 12 - Calculate the packing efficiency of the...Ch. 12 - Prob. 32ECh. 12 - Prob. 33ECh. 12 - Molybdenum crystallizes with the body-centred unit...Ch. 12 - Rhodium has a density of 12.41 g / cm3 and...Ch. 12 - Barium has a density of 3.59 g/cm3 and...Ch. 12 - Prob. 37ECh. 12 - Palladium crystallizes with a face-centered cubic...Ch. 12 - Prob. 39ECh. 12 - Identify each solid as molecular, ionic, or...Ch. 12 - Which solid has the highest melting point? Why?...Ch. 12 - Which solid has the highest melting point? Why?...Ch. 12 - Which solid in each pair has the higher melting...Ch. 12 - Which solid in each pair has the higher melting...Ch. 12 - Prob. 45ECh. 12 - Prob. 46ECh. 12 - The unit cells for cesium chloride and barium(ll)...Ch. 12 - Prob. 48ECh. 12 - Prob. 49ECh. 12 - Prob. 50ECh. 12 - Prob. 51ECh. 12 - Consider the zinc blende structure in Figure 12.14...Ch. 12 - Prob. 53ECh. 12 - Prob. 54ECh. 12 - Prob. 55ECh. 12 - What are the name and formula of the compound...Ch. 12 - Prob. 57ECh. 12 - Prob. 58ECh. 12 - Prob. 59ECh. 12 - Prob. 60ECh. 12 - Prob. 61ECh. 12 - How many molecular orbitals are present in the...Ch. 12 - Prob. 63ECh. 12 - Prob. 64ECh. 12 - Prob. 65ECh. 12 - Prob. 66ECh. 12 - Prob. 67ECh. 12 - Prob. 68ECh. 12 - Prob. 69ECh. 12 - Saran, the polymer used to make saran wrap, is an...Ch. 12 - One kind of polyester is a condensation copolymer...Ch. 12 - Nomex, a condensation copolymer used by...Ch. 12 - Prob. 73ECh. 12 - Polyacrylonitrile (PAN) is an addition polymer...Ch. 12 - Prob. 75ECh. 12 - Prob. 76ECh. 12 - Prob. 77ECh. 12 - Prob. 78ECh. 12 - Prob. 79ECh. 12 - Prob. 80ECh. 12 - Prob. 81ECh. 12 - The density of an unknown metal is 12.3 g/cm3 and...Ch. 12 - An unknown metal is found to have a density of...Ch. 12 - Prob. 84ECh. 12 - Prob. 85ECh. 12 - Prob. 86ECh. 12 - Prob. 87ECh. 12 - Prob. 88ECh. 12 - Prob. 89ECh. 12 - Prob. 90ECh. 12 - Prob. 91ECh. 12 - Perovskite is a compound with a cubic unit cell...Ch. 12 - Prob. 93ECh. 12 - Despite Dalton's laws, it is now known that many...Ch. 12 - During the glass manufacturing process, the liquid...Ch. 12 - Why are X-rays used for crystallography? Why not...Ch. 12 - Compare the crystal structure of diamond (C) and...Ch. 12 - Prob. 98ECh. 12 - Prob. 99ECh. 12 - Have each group member select one of the cubic...Ch. 12 - Prob. 101ECh. 12 - Prob. 102ECh. 12 - Prob. 103ECh. 12 - Prob. 104ECh. 12 - Prob. 105ECh. 12 - Prob. 1SAQCh. 12 - A crystalline solid has a body-centered cubic...Ch. 12 - Prob. 3SAQCh. 12 - Prob. 4SAQCh. 12 - Prob. 5SAQCh. 12 - Prob. 6SAQCh. 12 - Prob. 7SAQCh. 12 - Prob. 8SAQCh. 12 - Prob. 9SAQCh. 12 - Prob. 10SAQCh. 12 - Prob. 11SAQCh. 12 - Prob. 12SAQCh. 12 - Prob. 13SAQCh. 12 - Prob. 14SAQCh. 12 - Prob. 15SAQ
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- When an X-ray beam with a wavelength of 126.5 pm is incident on a metal crystal, it produces a peak in the X-ray spectrum at 31.2°. Assuming n = 1, determine the separation between layers of atoms (in pm) that gives rise to this peak. Report your answer to 1 decimal place.arrow_forwardX-ray diffractometers often use metals that have had their core electrons excited as a source of X-rays. Consider the 2p ¡ 1s transition for copper, which is called the Ka transition. Calculate the wavelength of X-rays (in Å) given offby the Ka transition if the energy given off by a mole of copper atoms is 7.77 * 105 kJ.arrow_forwardA crystalline sample has a diffraction peak at 15.6°. What is the corresponding d space in pm? Assume n = 1 and A = 90.1 pm. Report your answer to the ones place.arrow_forward
- The ionic radii of the Mg21 and 022 ions are 0.86 Å and 1.26 Å, respectively. Given that the compound magnesium oxide, MgO, forms a cubic-type lattice of some type, calculate a value for its density. As part of your answer, speculate on the lattice formed by the oxide ions and the type of holes occupied by the magnesium cations.arrow_forward5. a. Would you expect Frenkel defects for anions to exist in ionic ceramics in relatively large concentrations? Why or why not? b. If the energy for Frenkel defect formation in Zno is 2.51 eV, calculate the number of Frenkel defects per cubic meter at 1000°C. Take the density of ZnO at 1000°C as 5.55 g/cm. The atomic weight of zinc is 65.41 g/mol and that of oxygen is 16.00 g/mol.arrow_forwardDefine the term body-centered cubic lattice?arrow_forward
- Given Cs (262 pm), TI (171 pm), and B (88 pm) with their noted atomic radii, which atom is most likely to act as an interstitial impurity in an Sn lattice (Sn atomic radius = 141 pm)? Why?arrow_forwardA crystal was analyzed using X-ray diffraction with radiation Element λ (pm ) from a chromium source. The observed angle was 10.25°. CO 179 Determine the distance between layers of the crystal. Cr 229 Cu 154 Fe 194 Мо 71.1 d = pmarrow_forward1)Pure gold has a density of 19.32 g/cm3, and the atoms are packed in a face-centered cubic crystal lattice. What is the radius of a gold atom in pm? 2)The cubic unit cell parameter (a) of polonium (α-Po) is 335 pm. Use the Goldschmidt correction (Table 1) to calculate a metallic radius for this element.arrow_forward
- What are the values of 2 theta for the first 3 diffraction lines of FCC gold (atomic radius 144 pm) when the x-ray wavelength is 154 pm?arrow_forwardTantalum is a rare, hard, blue-gray, lustrous transition metal that is highly corrosion-resistant. It has a density of 17.6 grams per cubic centimeter and a molecular weight of 185.23 g/mol. What is the atomic radius of Ta if it adopts the body centered cubic unit structure? Express answer in scientific notation (e.g. 3.47e-23).arrow_forwardDescribe the bonding in calcium oxide, CaO, in terms of bands composed of Ca and O atomic orbitals. How does this model justify the ionic model of this compound?arrow_forward
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