COLLEGE PHYSICS,V.2
11th Edition
ISBN: 9781305965522
Author: SERWAY
Publisher: CENGAGE L
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Chapter 28, Problem 12CQ
To determine
The list of some concepts of atom pictured by the Bohr Theory in which quantum mechanics altered the view
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List some ways in which quantum mechanics altered our view of the atom pictured by the Bohr theory.
The energy levels for a Bohr atom are shown below. Use this diagram to solve problems 7 and 8.
0 eV
-2.5 eV
-4.0 eV
-7.0 eV
-12.5 eV
7. What amount of energy is needed for an electron to jump from n = 1 to n = 4?
8. What is the wavelength of the photon needed to make this happen? Is it emission or absorption?
What is an emission spectrum? Use the Bohr model to explain why the emission spectrum of the hydrogen atom consists of distinct lines at specific wavelengths.
Chapter 28 Solutions
COLLEGE PHYSICS,V.2
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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- Be sure to answer all parts. Consider the following energy levels of a hypothetical atom: E4-2.51 × 10-19 J E3-5.01 10-19 J E2 -1.25 x 10-18 J E₁-1.85 × 10-18 J (a) What is the wavelength of the photon needed to excite an electron from E₁ to E4? x 10 (b) What is the energy (in joules) a photon must have in order to excite an electron from E₂ to E3? x 10 m x 10 J (c) When an electron drops from the E3 level to the E₁ level, the atom is said to undergo emission. Calculate the wavelength of the photon emitted in this process. marrow_forwardWhich type of electromagnetic radiation could be described using photons? [State the properties of photons] all of these B Radio waves Gamma raysarrow_forwardGiven that 0.750 mol of a particular atom all release an identical photon, resulting in a total energy change of -176.0 kJ. Answer the following: (Hint: n does not equal 1 here) a. What is the wavelength of the photons released? b. What is the frequency of these photons? c. What region of the electromagnetic spectrum is this emitted photon in?arrow_forward
- CHOOSE the correct answer, then explain your reasoning in the RATIONALE section below: An electron in an excited atom jumps from an n=4 to n=1 energy level and emits a photon of orange light. If instead the electron jumped from the n-4 to n=2 energy level, then the light emitted could be O A. infra-red OB. yellow OC.X-rays D. green 47arrow_forwardList and describe the work of 2 scientists who were instrumental in discovering what we know about the current atomic model and quantum theory.arrow_forwardExplain Max Planck’s contribution to the development of quantum mechanics.arrow_forward
- During a physics experiment, helium gas is cooled to a temperature of 14.0 K at a pressure of 0.100 atm. What is the mean free path in the gas? Express your answer with ►View Available Hint(s) A = Submit Part B μA Value appropriate units. Units What is the rms speed of the atoms? Express your answer with the app ? File Explorerarrow_forwardDetermine the wavelength of the emitted photons when the electron jumps from n= 4 state to n= 2 state for a Hydrogen atom. What are its color and the name of the spectral series?arrow_forwardA neutral atom of the element boron (B) has 5 electrons. Four of the electrons are removed, forming an ion with the one remaining electron. a) Sketch an energy level diagram for this ion, showing the ground state and the first two excited states. Label each state with the value of its energy. b) Calculate the two longest wavelengths at which this ion can absorb radiation. Assume all absorption occurs from the ground state. c) What is the minimum amount of energy needed to remove the electron from the ground state of this ion?arrow_forward
- Calculate energy of the electron in the fifth Bohr orbit of H-atom.arrow_forwardBohr's postulates for the motion of the electron in a hydrogen atom leadto the conclusion thata) the energy of the electron is quantized.b) any radiation emitted by hydrogen should form a continuous spectrum.c) any radiation emitted by hydrogen should be in the form of discretewavelengths.d) all of the abovee) a and b onlyf) a and c onlarrow_forwardExplain the results of Rutherford’s gold foil experiment and how they changed our model of the atom.arrow_forward
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