---The first five energy levels of the hydrogen atom are at n 1, 13.6 eV; n = 2, 3.4 eV;n = 3, 1.51 eV; n = 4, -0.85 eV; n = 5, -0.54 eV. A hydrogen discharge lamp givesan infrared spectrum that includes a sharp line at a wavelength of 4 μm, coming from electronsexcited by the discharge to a higher level, and then jump down to a lower level. Determine theenergy lost by these electrons, and identify the higher and lower levels involved.

Step 1:Given : wavelength of the sharp line is 4μmlight consists of photons energy of photon =…

Answered: - - - The first five energy levels of…

College Physics

10th Edition

ISBN:9781285737027

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter28: Atomic Physics

Section: Chapter Questions

Problem 21P

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Give an example of a physical entity that is quantized. State specifically what the entity is and what the limits are on its values.
A singly ionized helium ion has only one electron and is denoted He+. What is the ion's radius in the ground state compared to the Bohr radius of hydrogen atom?
A 10. The energy levels for a Bohr atom are shown below. n = 5 n = 4 n = 3 Toggle bookmark -4.90 eV -7.65 eV -13.6 eV -30.6 eV n = 2 -122.4 ev n = 1 If an electron moves from n = 1 to n = 5, what wavelength of light is absorbed? (h = 6.626 x 10-34,1 eV = 1.6 x 10-19 J) O 209 nm 10.6 nm 13.5 nm 452 nm
a) The diagram shows the energy level diagram for a hydrogen atom. 0 eV, -0.38 eV. -0.54 eV -0.85 eV -1.51 eV An electron moves from quantum number n=3 to n=2. -3.39 ev Energy (ev) -13.6 eV ionisation ground level CCCC ii) Calculate the change in energy of the electron, giving your answer in joules. |||||||| 8 pint n=4 n=3 n=2 quantum numbers i) Explain how this energy level diagram can be used to model the behaviour of the single electron in a hydrogen atom. n=1
-21 This energy diagram shows the allowed energy levels of an electron in a certain atom. (Note: the SI prefix 'zepto' means 10 meaning of any SI prefix in the ALEKS Data tab.) You can find the 1400 - 1200 - 1000 800 energy (zJ) 600I B 400 A 200 Use this diagram to complete the table below. What is the energy of the electron in the ground state? zJ x10 What is the energy of the electron in the first excited zJ state? If the electron makes the transition shown by the red arrow, from A to C, will a photon be absorbed or emitted? O absorbed O emitted Calculate the wavelength of the photon that would be absorbed or emitted. Round your answer to 3 significant digits. nm O
A photon is absorbed by a hydrogen atom in the ground state. n=3 n=2 n=1 n=7 n=6 n=s n=4 n n 11=3 n=2 n=1 + E = 0 Es=-0.544 eV E4-0.850 eV E3 = -1.51 eV E2 = -3.40 eV E1-13.6 eV Ground state If the electron is boosted from to the n = 2, what was the energy of the photon? Give your answer in electron volts (eV). ev
An atom initially in an energy level with -2.59 eV emits a photon that has wavelength 480 nm. What is the internal energy of the atom after it emits the photon? a) -5.18 eV b) 2.59 eV -4.91 eV d) -2.75 eV e) -5.27 eV
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4. What is the maximum acceleration potential (V) must be applied to electrons to cause electron diffraction on (220) planes of Lithium at 0 = 5°? (aLi = 3.517A°, m. = 9.1093837015 × 10' kg, q. = 1.6 × 10-19 coulomb, h = 6.62 x 10 34 J.S).
An atom has the energy level diagram shown below. -3.0 eV n=3 4.0 eV n = 2 -7.0 ev n=1 -9.0 eV (a) Suppose that an electron is in the n = 3 state. What energy photons will be observed in an emission spectrum? O Photons of energy 2.0 and 3.0 ev. O Photons of energy 3.0 and 5.0 eV. Photons of energy 2.0, 3.0, and 5.0 eV. Only a photon of energy 5.0 eV. O Photons of energy 2.0 and 5.0 ev. (b) What energy photons will be observed in the absorption spectrum for this atom? Select ALL that will be observed. 01.0 eV O 4.0 ev 3.0 eV 5.0 eV 6.0 eV 2.0 ev
Angular momentum and Spin. An electron in an H-atom has orbital angular momentum magnitude and z-component given by L² = 1(1+1)ħ², Lz = m₁h, 1 = 0,1,2,..., n 1 - m₁ = 0, ±1, ±2, ..., ±l 3 S² = s(s+1) h² = =h²₁ 4 Consider an excited electron (n > 1) on an H-atom. The total angular momentum ] = L + Š, whose magnitude and z-component follow a similar dependence to some quantum numbers j and m; as J² = j(j + 1)ħ², Jz = mjħ 1 S₂ = m₂h = ± = h Where j and m; are quantum numbers which assume values that jumps in steps of one such that j is non-negative and −j ≤ m¡ ≤ j. For a given quantum number 1, what are the (two) possible values for j? Clue: we can use the vector sum relation of angular momenta, then consider the z-component only.
1A) When a completely ionized helium atom moves across a potential difference, its energy changes by AU=(-1.18x10^-15) J. What is the value of the potential difference? Provide your answer in volts, use scientific notation. Use three significant figures in your response. Ignore D2L's comment about "highest possible power", present your answer in format X.YZ*10^N. Note: Your answer is assumed to be reduced to the highest power possible. Your Answer: |x10 Answer units B) Two point charges, q1 =4.0 nC and q2 =-5.0 nC are located at A =(0.5,-1.0)m and B =(-2.6,-3.6)m, respectively. Calculate the electric potential due to these point charges at P =(-5.2,-2.7)m. Express your answer in volts, use appropriate symbols. Express your answer rounded to have at least one digit after the decimal, do not use scientific notation. Using more significant figures will not be considered incorrect, using fewer may result in errors due to rounding. Your Answer: Answer units

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