Sustainable Energy
2nd Edition
ISBN: 9781337551663
Author: DUNLAP, Richard A.
Publisher: Cengage,
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Chapter 5, Problem 2P
To determine
Find the total binding energy for a
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Question 1
An atom in the ground state
O has all electrons in the n 1 orbit
O has all electrons in the lowest energy orbits possible
O is finely divided
O will not absorb electromagnetik radiation of any wavelength
Question 2
Which of the following transitions in the Bohr hydrogen atom model affords emission of the
highest-energy photon? (R, = 2.18 x 10 1ª j)
Oni-6 1
O ni-1+nf-6
Find the average binding energy per nucleon of 2 Mo and 82 Kr. (For the atomic masses, see this table. Enter your answers to at least two decimal places.)
42
36
(a)
92 Mo
42
MeV/nucleon
82
(b)
Kr
36
MeV/nucleon
Construct a Frost circle for a planar seven-membered ring with one 2p orbital on each atom of the ring and show the relative energies of its seven π molecular orbitals. Which are bonding MOs, which are antibonding, and which are nonbonding?
Chapter 5 Solutions
Sustainable Energy
Ch. 5 - Prob. 1PCh. 5 - Prob. 2PCh. 5 - A sample of 137Cs (half-life = 30.1 years) decays...Ch. 5 - Prob. 4PCh. 5 - What are the decay products of the decay of the...Ch. 5 - Prob. 6PCh. 5 - Nuclide A has a half-life of 4 days, and nuclide B...Ch. 5 - 64Cu can decay by both decay and + decay. Draw an...Ch. 5 - At time t = 0 a sample contains 3.57 108 nuclei...Ch. 5 - Prob. 10P
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- vvnat is the number of protons, neutrons, and electrons for element has; atomic number 9, mass number 18, charge of 1- Op: 9; n: 9; e: 12 Op: 9; n: 9; e: 8 Op: 9; n: 9; e: 9 Op: 9; n: 9; e: 10arrow_forwardPeriod 6 is unusual in several ways.(a) It is the longest period in the table. How many elements be-long to Period 6? How many metals?(b) It contains no metalloids. Where is the metal/nonmetal boundary in Period 6?arrow_forwardWhich of the following statements is correct about the electron band structure of materials? A) metals exhibit large band gaps. B insulator materials have a very small band gap. c) in metals, empty band and the filled band are overlapped.arrow_forward
- Nuclide A has a half-life of 4 days, and nuclide B has a half-life of 16 days. At the beginning of an experiment, a sample contains 218 nuclei of nuclide A and 212 nuclei of nuclide B. How long will it take before the numbers of nuclei of the two nuclides are equal?arrow_forwardAt time t = 0 a sample contains 3.57 108 nuclei of a particular nuclide. Exactly one year later the sample contains 3.09 108 nuclei of the same species. Calculate the half-life of the decay.arrow_forwardApplication of Differential Calculus A zircon sample contains 4000 atoms of the radioactive element 235U given that 235U has a half-life of 700 million years, how long would it take to decay to 125 atoms?arrow_forward
- Explain which kind of microstructures you expect to observe at room temperature if an iron-carbon alloy of eutectoid composition is cooled down following the red and blue curves. 800 727° 700 Coarse pearlite 600 a+ FeC Fine pearlite 500 y+ a+ Fe,C 400 Bainite 300 M5- 200 so - Mo 100 1 sec 1 min 1 hour 1 day 102 103 104 105 0.1 10 Time, secondsarrow_forwardThorium- 231 is the product of alpha emission. It is radioactive and emits beta radiation. Determine (a) the parent nucleus of Th-231. (b) the daughter product of Th-231 decay.arrow_forward
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