21st Century Astronomy: The Solar System (Sixth Edition)
21st Century Astronomy: The Solar System (Sixth Edition)
6th Edition
ISBN: 9780393691283
Author: Laura Kay; Stacy Palen; George Blumenthal
Publisher: W. W. Norton
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Chapter 14, Problem 2QP
To determine

The order of steps involved in fusion of hydrogen.

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In the proton–proton chain,   a. no neutrinos are produced.   b. energy is released because a helium nucleus has a greater mass than a hydrogen nucleus.   c. no photons are produced.   d. carbon serves as a catalyst for the nuclear reaction.   e. energy is produced in the form of gamma rays and the velocity of the created nuclei.
15. Which of the following nuclei is most likely to decay by positron emission? Explain your choice. a. chromium-53 b. manganese-51 c. iron-59
11. Tin has an atomic number of 50. Write the chemical equation for the beta particle emission of 121Sn. What is the daughter isotope? 12. Technetium has an atomic number of 43. Write the chemical equation for the beta particle emission of 9°TC. What is the daughter isotope? 13. Energies of gamma rays are typically expressed in units of megaelectron volts (MeV), where 1 MeV = 1.602 x 10-13 J. Using data provided in the text, calculate the energy, in megaelectron volts, of the gamma ray emitted when radon-222 decays. 14. The gamma ray emitted when oxygen-19 gives off a beta particle is 0.197 MeV. What is its energy in joules? (See Exercise 13 for the definition of a megaelectron volt.) 15. Which penetrates matter more deeply-alpha particles or beta particles? Suggest ways to protect yourself against both particles. 16. Which penetrates matter more deeply-alpha particles or gamma rays? Suggest ways to protect yourself against both emissions. 17. Define nuclear fission. 18. What general…
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