Bundle: Foundations Of Astronomy, 14th + Mindtap Astronomy, 1 Term (6 Months) Printed Access Card
14th Edition
ISBN: 9780357000427
Author: Michael A. Seeds, Dana Backman
Publisher: Cengage Learning
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Question
Chapter 7, Problem 11RQ
To determine
The reason for which the atoms have different lines in their spectra.
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How can elements with low atomic numbers have so many spectral lines?
The following image is an energy level diagram for a simple
atom, where E1
0.00 ev, E2 = 1.34 ev, and E3
3.95 ev.
%3D
n=3
E3=?
n=2
E,=?
n=1
- Ez=?
What wavelengths appear in the atom's emission spectrum?
(Enter your wavelengths in the order of smallest to largest.)
3.14x10-7 m 4.75×10-7 m 9.25x10-7 m
You are correct.
Your receipt no. is 162-5156 ?
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What wavelengths appear in the atom's absorption spectrum?
(Enter your wavelengths in the order of smallest to largest.)
In a sample that contains hydrogen, among other things, four spectral lines are
found in the infrared with wavelengths 7460 nm, 4654 nm, 4103 nm, and 3741 nm. Which
one does not belong to a hydrogen spectral series?
Chapter 7 Solutions
Bundle: Foundations Of Astronomy, 14th + Mindtap Astronomy, 1 Term (6 Months) Printed Access Card
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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- Which of the following are not allowed? State which rule is violated for any that are not allowed. (a) 1p3(b) 2p8(c) 3g11(d) 4f2arrow_forwardIs a spectral line with wavelength 656 nm seen in the absorption spectrum of hydrogen atoms? Why or why not?arrow_forwardThe energy levels of a hypothetical atom are shown here. Which of the following photons can an electron sitting in the -4eV energy level absorb? (select two answers) -0.2 ev -0.4 ev -1.8 ev 4 ev A photon with 2.5 eV of energy A photon with 3.8 eV of energy A photon with 0.4 ev of energy A photon with 1.8 ev of energy A photon with 2.2 ev of energyarrow_forward
- When a hydrogen atom is in its third excited state, what are the shortest and longest wavelengths of the photons it can emit?arrow_forwardWhat can be said about the relative temperatures of whitish-yellow, reddish, and bluish stars? Explain.arrow_forwardFind the wavelength of the photon that is emitted when a hydrogen atom undergoes a transition from n; = 6 to nf = 2. (RH = 1.097 x 10-3Å-1) Answerarrow_forward
- The energy-level diagram for the atomic emission spectra of an unknown gas is presented in the diagram below. n = 4 4.2 ev v G Color Wavelength Frequency Photon energy violet 380-450 nm 668-789 THz 2.75-3.26 eV n= 3 2.4 ev blue 450-495 nm 606-668 THz 2.50-2.75 ev n = 2 2.0 ev green 495-570 nm 526-606 THz 2.17-2.50 ev yellow 570-590 nm 508-526 THz 2.10-2.17 ev orange 590-620 nm 484-508 THz 2.00-2.10 ev red 620-750 nm 400-484 THz 1.65-2.00 ev n=1 O ev Part A Initially, electrons are in both the ground and first excited state (n=1 and n=2). A beam of light hits the gas. This beam is a continuous spectrum of yellow/green light (from 495 nm to 590 nm) How many absorption line/s will there be in the spectra? 2 Submit Previous Answers v Correct Part B Calculate the wavelength of the absorption lines. Separate answers by a comma. 1, 518,565 nm Part C After absorption of the yellow/green light, how many emission lines are possible? ? Submit Request Answerarrow_forwardWhat is the maximum number of spectral lines emitted by a hydrogen atom when it is in the third excited state?arrow_forwardSuppose the electron in a hydrogen atom moves fron n=2 to n=1. In which region of the electromagnetic spectrum whould you expect the light from this emission to appear? Provide justification for your answer.arrow_forward
- Show that different lines of the hydrogen spectrum in terms of angstroms are obtained from the following equation :arrow_forwardA blue-hot star is about twice as hot as a red-hot star. But the temperatures of the gases in advertising signs are about the same, whether they emit red or blue light. What is your explanation?arrow_forwardWhat is the photon frequency (Terahertz) needed to move an electron in a hydrogen atom from a lower energy level n; = 3 to a higher energy level nf = 5? (keep 3 decimal places) %D %3Darrow_forward
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