Foundations of Astronomy (MindTap Course List)
14th Edition
ISBN: 9781337399920
Author: Michael A. Seeds, Dana Backman
Publisher: Cengage Learning
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Chapter 7, Problem 10RQ
To determine
The possible aspects for the transition from fifth excited state to the third excited state.
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Calculate the wavelength of a photon emitted by the transition of an electron from the fifth orbit to the second orbit of the hydrogen atom
a.) 434 nm
b.) 456 nm
c.) 863 nm
d.) 268 nm
Why don’t we see hydrogen Balmer lines in the spectra of stars with temperatures of 45,000 K?
a.
There is no hydrogen in stars this hot.
b.
The stars are hot enough that most of the hydrogen is ionized and the atoms cannot absorb energy.
c.
These stars are so cool that nearly all of the electrons in the hydrogen atom are in the ground state.
d.
Stars of this temperature are too cool to produce an absorption spectrum.
e.
Stars of this temperature are too hot to produce an absorption spectrum.
What lines would be missing for hydrogen in an absorption spectrum? What wavelengths are missing for hydrogen in an emission spectrum?
Chapter 7 Solutions
Foundations of Astronomy (MindTap Course List)
Ch. 7 - Prob. 1RQCh. 7 - Prob. 2RQCh. 7 - Prob. 3RQCh. 7 - Prob. 4RQCh. 7 - Prob. 5RQCh. 7 - Prob. 6RQCh. 7 - Prob. 7RQCh. 7 - Prob. 8RQCh. 7 - Prob. 9RQCh. 7 - Prob. 10RQ
Ch. 7 - Prob. 11RQCh. 7 - Prob. 12RQCh. 7 - Prob. 13RQCh. 7 - Prob. 14RQCh. 7 - Prob. 15RQCh. 7 - Prob. 16RQCh. 7 - How is heat different from temperature?Ch. 7 - Prob. 18RQCh. 7 - Prob. 19RQCh. 7 - Prob. 20RQCh. 7 - Prob. 21RQCh. 7 - Prob. 22RQCh. 7 - Could an object be orbiting another object and we...Ch. 7 - Prob. 24RQCh. 7 - How Do We Know? How is the macroscopic world you...Ch. 7 - Prob. 1PCh. 7 - Answer these questions for celestial bodies at...Ch. 7 - Prob. 3PCh. 7 - Prob. 4PCh. 7 - Prob. 5PCh. 7 - Prob. 6PCh. 7 - Prob. 7PCh. 7 - Prob. 8PCh. 7 - Prob. 9PCh. 7 - Prob. 10PCh. 7 - Prob. 11PCh. 7 - Prob. 12PCh. 7 - Prob. 1SOPCh. 7 - Prob. 2SOPCh. 7 - Prob. 1LTLCh. 7 - Prob. 2LTLCh. 7 - Prob. 3LTLCh. 7 - Prob. 4LTLCh. 7 - Prob. 5LTLCh. 7 - Prob. 6LTLCh. 7 - Prob. 7LTL
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- What are X-rays and how are they produced? Do you think it would be possible, in principle, to obtain an X-ray line spectrum from hydrogen? Give reasons to support your answer.arrow_forwardDescribe how the hydrogen atom might absorb a photon of energy less than 13.6 eV. Describe a process by which a 9.8-eV photon might be absorbed. What about a 15.2-eV photon?arrow_forwardState whether it is true that “the A spectrum is AM0 and the B spectrum is AM1.5”. Explain why B is weaker than A across the whole wavelength range. Show how you estimate the surface temperature of the Sun using the given spectrum.arrow_forward
- Describe what happens to the blackbody spectrum as you increase or decrease the temperature. What happens to the shape of the curve and the peak of this curve? Explain it in a detailed way.arrow_forwardSketch the energy levels of hydrogen. Determine the wavelength of the photon absorbed when an electron transitions from the n = 2 to 6 level. What color is this light?arrow_forwardA photon has wavelength of (λ = 531 pm). Does this photon have enough energy to ionize a hydrogen atom? Show DETAILED calculations to support your answer in the following format. It's a must for me! What are you solving for? What should be the units of your final answer? What information are you given? What information do you need? How will you connect the information you have and the information you need to solve this problem? (Provide a unit plan) Solve the problem. Be sure to show all units and write clearly. Does your answer make sense? How do you know? Thank youarrow_forward
- Three prominent spectral lines of wavelength a are observed at 499nm, 508nm, and 523nm. What is the most likely composition of this sample? Select one: О а. Helium b. Lithium Ос. Нydrogen O d. Chlorine е. Охудen f. Neonarrow_forwardWhat type of spectrum is observed in the light from the sun and other stars? a continuous spectrum consisting of all colors. an emission spectrum. an absorption spectrum consisting of dark lines in a continuous bright background. an atomic spectrum of hydrogen.arrow_forwardA photon has wavelength of (λ = 695 pm). Does this photon have enough energy to ionize a hydrogen atom? Show DETAILED calculations to support your answer in the following format. It's a must for me! Its not that complex of a question. you guys have answered a question like this before. please and thank you. What are you solving for? What should be the units of your final answer? What information are you given? What information do you need? How will you connect the information you have and the information you need to solve this problem? (Provide a unit plan) Solve the problem. Be sure to show all units and write clearly. Does your answer make sense? How do you know? Thank youarrow_forward
- Here is the emission spectrum for a hydrogen atom. To the best of your knowledge, how do you think this emission spectrum is created?arrow_forwardAn electron is in the n=5 state of a hydrogen (Bohr) atom. As it de-excites to the ground state, how many emission lines are possible? Show these on an energy level diagram. Which emission line has the shortest wavelength? Which emission line has the longest wavelength? (You do not need to actually find these wavelengths.)arrow_forwardThe energies of two energy-levels of hydrogen atom are -3.4 eV and -1.5 eV. If electron transition occurs from the higher to the lower level: i) Is photon absorbed or emitted in the transition?ii) Calculate the energy of the photon.iii) Determine the wavelength of the photon?arrow_forward
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