College Physics (10th Edition)
10th Edition
ISBN: 9780321902788
Author: Hugh D. Young, Philip W. Adams, Raymond Joseph Chastain
Publisher: PEARSON
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Textbook Question
Chapter 17, Problem 74GP
An early model of the hydrogen atom viewed it as an electron orbiting a proton in a circular path with a radius of 5.29 × 10‑11 m. What would be the centripetal acceleration of the electron in this model? How does this number compare with the acceleration of gravity, g? (You may need to review Chapter 6 on circular motion.)
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provides some pertinent background for this problem. Suppose a single electron orbits about a nucleus containing two protons (+2e), as would be the case for a helium atom from which one of the naturally occurring electrons is removed. The radius of the orbit is 3.09 × 10-11 m. Determine the magnitude of the electron's centripetal acceleration.
An electron has a mass of 9.11x10-31 kg. In the Bohr model of the hydrogen atom, the electron was viewed as orbiting the lone proton of the nucleus; the centripetal force requirement was met by the electrical attraction between the oppositely charged proton and electron. The radius of orbit was 5.29x10-11 m. Use circular motion and electrostatic principles to determine the speed at which the electron moves as it orbits the proton.
An electron has a mass of 9.11x10-31 kg. In the Bohr model of the hydrogen atom, the electron is viewed as orbiting the single proton in the nucleus; the centripetal force is provided by the electrical attraction between the oppositely charged proton and electron. The radius of orbit is 5.29x10-11 m. What is the speed at which the electron moves as it orbits the proton. (Hint: Centripetal acceleration is v2/r.)
A) 2.28*106 m/s
B) 5.33*104 m/s
C) None of these.
Chapter 17 Solutions
College Physics (10th Edition)
Ch. 17 - Bits of paper are attracted to an electrified comb...Ch. 17 - When you walk across a nylon rug and then touch a...Ch. 17 - What similarities does the electric force have to...Ch. 17 - In a common physics demonstration, a rubber rod is...Ch. 17 - A gold leaf electroscope, which is often used in...Ch. 17 - Show how it is possible for neutral objects to...Ch. 17 - Suppose you have a hollow spherical conductor. Is...Ch. 17 - If an electric dipole is placed in a uniform...Ch. 17 - Why do electric field lines point away from...Ch. 17 - A lightning rod is a pointed copper rod mounted on...
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