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Fundamentals of Physics, Volume 1, Chapter 1-20
10th Edition
ISBN: 9781118233764
Author: David Halliday
Publisher: WILEY
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Chapter 39, Problem 43P
To determine
To find:
a) Kinetic energy if the electron is one Bhor radius from central nucleus
b) Potential energy if the electron is one Bhor radius from central nucleus
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Chapter 39, Problem 043
In the ground state of the hydrogen atom, the electron has a total energy of -13.6 ev. What are (a) its kinetic energy and
(b) its potential energy if the electron is a distance 4.0a from the central nucleus? Here a is the Bohr radius.
(a) Number
Units
eV
(b) Number
Units
eV
In the ground state of the hydrogen atom, the electron has a total energy of -13.6 eV.What are (a) its kinetic energy and (b) its potential energy if the electron is one Bohr radius from the central nucleus?
From far away a proton is fired directly toward the center of the nucleus of a
mercury atom. Mercury is element number 80, and the diameter of the nucleus is
14.0 fm. Assume the mercury nucleus is fully-ionized, with no electrons bound to it.
If the proton is fired at a speed of 3.8×107 m/s, what is its
closest approach to the surface of the nucleus? Assume the
nucleus remains at rest.
Express your answer with the appropriate units.
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0
d = 2.7
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A
fm
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Chapter 39 Solutions
Fundamentals of Physics, Volume 1, Chapter 1-20
Ch. 39 - Prob. 1QCh. 39 - Prob. 2QCh. 39 - Prob. 3QCh. 39 - Prob. 4QCh. 39 - Prob. 5QCh. 39 - Prob. 6QCh. 39 - Prob. 7QCh. 39 - Prob. 8QCh. 39 - Prob. 9QCh. 39 - Prob. 10Q
Ch. 39 - Prob. 11QCh. 39 - Prob. 12QCh. 39 - Prob. 13QCh. 39 - Prob. 14QCh. 39 - Prob. 15QCh. 39 - Prob. 1PCh. 39 - Prob. 2PCh. 39 - Prob. 3PCh. 39 - Prob. 4PCh. 39 - Prob. 5PCh. 39 - Prob. 6PCh. 39 - Prob. 7PCh. 39 - Prob. 8PCh. 39 - Prob. 9PCh. 39 - Prob. 10PCh. 39 - Prob. 11PCh. 39 - Prob. 12PCh. 39 - Prob. 13PCh. 39 - Prob. 14PCh. 39 - Prob. 15PCh. 39 - Prob. 16PCh. 39 - Prob. 17PCh. 39 - Prob. 18PCh. 39 - Prob. 19PCh. 39 - Prob. 20PCh. 39 - Prob. 21PCh. 39 - Prob. 22PCh. 39 - Prob. 23PCh. 39 - Prob. 24PCh. 39 - Prob. 25PCh. 39 - Prob. 26PCh. 39 - Prob. 27PCh. 39 - Prob. 28PCh. 39 - Prob. 29PCh. 39 - Prob. 30PCh. 39 - Prob. 31PCh. 39 - Prob. 32PCh. 39 - Prob. 33PCh. 39 - Prob. 34PCh. 39 - Prob. 35PCh. 39 - Prob. 36PCh. 39 - Prob. 37PCh. 39 - Prob. 38PCh. 39 - Prob. 39PCh. 39 - Prob. 40PCh. 39 - Prob. 41PCh. 39 - Prob. 42PCh. 39 - Prob. 43PCh. 39 - Prob. 44PCh. 39 - Prob. 45PCh. 39 - Prob. 46PCh. 39 - Prob. 47PCh. 39 - Prob. 48PCh. 39 - Prob. 49PCh. 39 - Prob. 50PCh. 39 - Prob. 51PCh. 39 - Prob. 52PCh. 39 - Prob. 53PCh. 39 - Prob. 54PCh. 39 - Prob. 55PCh. 39 - Prob. 56PCh. 39 - Prob. 57PCh. 39 - Prob. 58PCh. 39 - Prob. 59PCh. 39 - Prob. 60PCh. 39 - Prob. 61PCh. 39 - Prob. 62PCh. 39 - Prob. 63PCh. 39 - Prob. 64PCh. 39 - A diatomic gas molcculc consistsof two atoms of...Ch. 39 - Prob. 66PCh. 39 - Prob. 67PCh. 39 - Prob. 68PCh. 39 - Prob. 69PCh. 39 - Prob. 70PCh. 39 - An old model of a hydrogen atom has the charge e...Ch. 39 - Prob. 72PCh. 39 - Prob. 73P
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- How many revolutions does the electron in the hydrogen atom in the ground state make per second? (h = 6.63x10 Js, mass of clectron = 9.11x101 kg, Bohr radius = 0.053 nm.) A- 6.55x1015 B- 3.28x1015 C- 3.28x10 D- 1.64x105 E- 9.11x105 The ionisation energy of the hydrogen atom is 13.6 eV. If hydrogen atoms in the ground state absorb quanta of encrgy 12.75 eV, how many discrete spectral lines will be emitted as per Bohr's theory? A- 1 В-2 С-4 D- 6 E- zero The electron in a hydrogen atom makes a transition from an excited state to the ground state. Which of the following statements is true? A- Its kinetic energy increases and its potential and total energies decrease. B- Its kinetic energy decreases, potential energy increases and its total energy remains the same. C- ts kinetic and total energies decrease and its potential energy increases. D- Its kinetic, potential and total energies decrease. An electron in a Haydrogen atom undergoes a transition from the state n = 4 to n = 2. The energy…arrow_forwardThe energy of the n = 2 Bohr orbit is -30.6 eV for an unidentified ionized atom in which only one electron moves about the nucleus. What is the radius of the n = 3 orbit for this species? Number i Units >arrow_forwardSuppose 8.5x10−19 J of work is done to bring the nucleus of an atom from some infinite distance away to a particular location near a fixed positive charge. What would the electric potential energy of the nucleus be? (a) 3.4x10−18 J (b) 1.7x10−18 J (c) 8.5x10−19 J (d) 4.3x10−19 J (e) None of the above.ii. The nucleus is released an returns to the very far original position. Considering the kinetic energy of the nucleus and a mass of 6.6x10−27 kg, which is closest to the velocity of the nucleus? (a) 1.2x10−9 m/s (b) 1600 m/s (c) 11000 m/s (d) 2.5x108 m/s (e) None of the above.arrow_forward
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- In a hydrogen atom, the electron is at a distance of 4.768 Å from the nucleus. The angular momentum of the electron is......arrow_forwardDetermine the distance between the electron and proton in an atom if the potential energy U of the electron is 13.8 ev (electronvolt, 1 eV -19 1.6 x 10 J). Give your answer in Angstrom (1 A = 10"1º m). Answer: Choose... + Next pagearrow_forwardDetermine the distance between the electron and proton in an atom if the potential energy U of the electron is 13.8 ev (electronvolt, 1 eV = 1.6 × 10-19 J). Give your answer in Angstrom (1 A = 10-10 m). Answer: Choose... + Previous pagearrow_forward
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