College Physics:
11th Edition
ISBN: 9781305965515
Author: SERWAY, Raymond A.
Publisher: Brooks/Cole Pub Co
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Chapter 28, Problem 15P
To determine
The higher energy orbit from where the electron jumps to a lower energy orbit.
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A hydrogen atom emits a photon of wavelength 656 nm. From what energy orbit to what lower - energy orbit did the electron jump?
A) What is the approximate wavelength emitted from helium represented by the bright yellow emission line below? What is it's frequency in HZ and energy in eV? (1 eV= 1.6 x 10-19 joules).
B) If the excited helium electron that emits a yellow photon in this line starts with a potential energy of 8 eV, what is the potential energy of the electron afterwards? Assume that the emission of a yellow photon is allowed by the laws of quantum mechanics. Also don't worry about the other electron.
An electron is confined to a rigid box that is 1.20nm long.
If the electron is in the third excited state what is the de broglie wavelength?
What are all of the possible wavelengths of light that the electron can emit as it goes to ground state?
Chapter 28 Solutions
College Physics:
Ch. 28.3 - Prob. 28.1QQCh. 28.4 - Prob. 28.2QQCh. 28.5 - Prob. 28.3QQCh. 28 - Prob. 1CQCh. 28 - Prob. 2CQCh. 28 - Prob. 3CQCh. 28 - Prob. 4CQCh. 28 - Prob. 5CQCh. 28 - Prob. 6CQCh. 28 - Prob. 7CQ
Ch. 28 - Prob. 8CQCh. 28 - Prob. 9CQCh. 28 - Prob. 10CQCh. 28 - Prob. 11CQCh. 28 - Prob. 12CQCh. 28 - Prob. 13CQCh. 28 - Prob. 14CQCh. 28 - Prob. 15CQCh. 28 - Prob. 1PCh. 28 - Prob. 2PCh. 28 - Prob. 3PCh. 28 - Prob. 4PCh. 28 - Prob. 5PCh. 28 - Prob. 6PCh. 28 - Prob. 7PCh. 28 - Prob. 8PCh. 28 - Prob. 9PCh. 28 - Prob. 10PCh. 28 - Prob. 11PCh. 28 - Prob. 12PCh. 28 - Prob. 13PCh. 28 - Prob. 14PCh. 28 - Prob. 15PCh. 28 - Prob. 16PCh. 28 - Prob. 17PCh. 28 - Prob. 18PCh. 28 - Prob. 19PCh. 28 - Prob. 20PCh. 28 - Prob. 21PCh. 28 - Prob. 22PCh. 28 - Prob. 23PCh. 28 - Prob. 24PCh. 28 - Prob. 25PCh. 28 - Prob. 26PCh. 28 - Prob. 27PCh. 28 - Prob. 28PCh. 28 - Prob. 29PCh. 28 - Prob. 30PCh. 28 - Prob. 31PCh. 28 - Prob. 32PCh. 28 - Prob. 33PCh. 28 - Prob. 34PCh. 28 - Prob. 35PCh. 28 - Prob. 36PCh. 28 - Prob. 37PCh. 28 - Prob. 38PCh. 28 - Prob. 39PCh. 28 - Prob. 40PCh. 28 - Prob. 41PCh. 28 - Prob. 42PCh. 28 - Prob. 43PCh. 28 - Prob. 44PCh. 28 - Prob. 45PCh. 28 - Prob. 46APCh. 28 - Prob. 47APCh. 28 - Prob. 48APCh. 28 - Prob. 49APCh. 28 - Prob. 50APCh. 28 - Prob. 51APCh. 28 - Prob. 52APCh. 28 - Prob. 53APCh. 28 - Prob. 54AP
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- A hydrogen atom is at rest, in the second excited state, when it emits a photon of energy 12.1 eV. What is the speed of the ground-state hydrogen atom when it recoils due to the photon emission? What is the kinetic energy of the recoiled particle?arrow_forwardAn electron is trapped in a is absorbed, the electron is in the n = 6 energy level. What was the wavelength of the absorbed photon? one-dimensional box that is 501 nm wide. Initially, it is in the n = 3 energy level but, after a photon wavelength: Eventually, the electron ends up in the ground state. As it does so, one or more photons are emitted during those transitions. Find the wavelengths of the least energetic and most energetic photons that might be emitted during all the possible transitions to the ground state. wavelength of least energetic photon: m wavelength of most energetic photon: m marrow_forwardCalculate the de Broglie wavelength for : a. a jogger of mass 77 kg runs with at speed of 4.1 m s1. b. an electron of mass 9.11x10-31 kg moving at 3.25x105 m s1 (Given the Planck's constant, h =6.63x1034J s)arrow_forward
- The electron in a hydrogen atom jumps from the E5 eV ev E₁ = = What is the (positive) energy and wavelength of the photon emitted? eV E photon λ = λ = = n₁ 5 state to the nf = nm Follow the same steps to find the wavelength of the photon emitted when the electron in the hydrogen atom jumps from the n = nm = 1 state. What are the energies of these two states? 13 state to the and n₁ = 4 state.arrow_forwardWhat is the energy change of a hydrogen atom when it moves from energy level n=4 to energy level n=1? Is radiation emitted or absorbed? What is the wavelength for this change?arrow_forwardPhoton P shown moves an electron from energy level n = 1 to energy level n = 3. The electron jumps down to n = 2, emitting photon Q, and then jumpsdown to n = 1, emitting photon R. The spacing between energy levels is drawn to scale. What is the correct relationship among the wavelengths of the photons?A. λP < λQ < λR B. λR < λP < λQC. λQ < λP < λR D. λR < λQ < λParrow_forward
- What is the frequency of light (in Hz) of a photon emitted when an electron in a hydrogen atom undergoes a transition from the n = 4 energy state to the n=2 energy state? Express your answer to at least two significant figures.arrow_forwardAn electron is bound to a region of space by a springlike force with natural frequency 04.082 x 10¹5 rad/s. a) Find the ground state energy of this electron. Give your answer in units of eV. b) Suppose the electron absorbs a photon and jumps from the ground state to the first excited state. What is the wavelength of the photon? Give your answer in units of nm.arrow_forwardA hydrogen atom is in state N= 3, where N = 1 is the lowest energy state. What is K+U in electron volts for this atomic hydrogen energy state? E3 = eV The hydrogen atom makes a transition to state N = 2. What is K+U in electron volts for this lower atomic hydrogen energy state? E₂ = eV What is the energy in electron volts of the photon emitted in the transition from level N = 3 to N = 2? Ephoton = eVarrow_forward
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