The energy-level diagram for the atomic emission spectra of an unknown gas is presented in the diagram below. ▾ Part A ▾ 2 Submit ✓ Correct Part B Previous Answers Calculate the wavelength of the absorption lines. Separate answers by a comma. A₁. 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? [5] ΑΣΦ Submit 1 Request Answer ? n=4 nm n=3 n=2 n=1 4.2 eV 2.4 eV 2.0 eV O ev budod o EVE OF Color Wavelength Frequency Photon energy violet 380-450 nm 668-789 THz 2.75-3.26 V blue 450-495 nm 606-668 THz 2.50-2.75 V green 495-570 nm 526-606 THz 2.17-2.50 V yellow 570-590 nm 508-526 THz 2.10-2.17 V orange 500-620 nm 484-508 THz 2.00-2.10 V red 620-750 nm 400-484 THz 1.65-2.00 V V

The energy-level diagram for the atomic emission spectra of an unknown gas is presented in the diagram below. ▾ Part A ▾ 2 Submit ✓ Correct Part B Previous Answers Calculate the wavelength of the absorption lines. Separate answers by a comma. A₁. 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? [5] ΑΣΦ Submit 1 Request Answer ? n=4 nm n=3 n=2 n=1 4.2 eV 2.4 eV 2.0 eV O ev budod o EVE OF Color Wavelength Frequency Photon energy violet 380-450 nm 668-789 THz 2.75-3.26 V blue 450-495 nm 606-668 THz 2.50-2.75 V green 495-570 nm 526-606 THz 2.17-2.50 V yellow 570-590 nm 508-526 THz 2.10-2.17 V orange 500-620 nm 484-508 THz 2.00-2.10 V red 620-750 nm 400-484 THz 1.65-2.00 V V

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter29: Atomic Physics

Section: Chapter Questions

Problem 8P

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The energy-level diagram for the atomic emission spectra of an unknown gas is presented in the diagram below. a) Initially, electrons are only in the ground state (n=1). A beam of red light hits the gas. This beam is a continuous spectrum of red light (from 620 nmnm to 750 nmnm) How many absorption line/s will there be in the spectra? 1 b) Initially, electrons are only in the ground state (n=1). A beam of red light hits the gas. This beam is a continuous spectrum of red light (from 620 nmnm to 750 nmnm) Calculate the wavelength of the absorption line λa = 690 nm c) After absorption of the red light, the electrons are now in the n = 3 energy level. How many possible line/s will there be in an emission spectra after absorption of the red light? Please solve for C.
Formal Solution physics please help 1. Express the wavelength range for visible light in eV.
values, and get the results.) 1. Figure on the right is an energy-level diagram for a simple atom. (a) What wavelengths, in nm, appear in the atom's emission spectrum? (b) What wavelengths, in nm, appear in the atom's absorption spectrum? n = 3 E, = 4.00 eV n = 2 E, = 1.50 eV n = 1 E, = 0.00 eV
The electron in a hydrogen atom is typically found at a distance of about 5.3 × 10-11 m from the nucleus, which has a diameter of about 1.0 × 10-15 m. Part A If you assume the hydrogen atom to be a sphere of radius 5.3 × 10-11 m, what fraction of its volume is occupied by the nucleus? Express your answer using two significant figures. Vnucleus Vatom Submit Provide Feedback —| ΑΣΦ Request Answer www ? Next >
PROBLEMS 1.1 The work function of barium and tungsten are 2.5' eV and 4.2 eV, respectively. Check whether these materials are useful in a photocell, which is to be used to detect visible light.
The uncertainty in position of a proton confined to the nucleus of an atom is roughly the diameter of the nucleus. Part A If this diameter is 5.6×10-15 m, what is the uncertainty in the proton's momentum? Express your answer using two significant figures. 15. ΑΣΦ Ap> Submit Provide Feedback Request Answer B m ? kg-m/s
Calculate the wavelength of a photon emitted when singly ionized helium (He+) transitions from the n = 3 to n = 2 state. The emitted photon has a wavelength of 0.164 nm. A photon is emitted when doubly ionized helium (He++) recombines with an electron to form He+ in the n = 2 state. How does the wavelength of the resulting photon compare to the answer from the previous problem? A. The wavelength is longer in this case because the change in energy (ΔE) is smaller. B. The wavelength is shorter in this case because the change in energy (ΔE) is smaller. C. The wavelength is longer in this case because the change in energy (ΔE) is greater. D. The wavelength is shorter in this case because the change in energy (ΔE) is greater. E. The wavelength is the same because both cases end with He+ in the n = 2 state.
An atomic emission spectrum of hydrogen shows three wavelengths: 656.5 nm, 486.3 nm, and 434.2 nm. Assign these wavelengths to transitions in the hydrogen atom. Match the items in the left column to the appropriate blanks in the sentences on the right. Reset Help 1 1 AE 1.1 x 107 2 nimal nitial the wavelengths of the visual The wavelengths of the three transitions are region. Therefore, it can be assumed that the electrons return to the level. shorter than longer than n = 7 The difference in energy between the two levels initial and nfinal is given by the 1 1 equation AE-2.18 x 10-18 2 ninal After calculating the energy difference using the given wavelengths, solving the equation for initial, and subtituting the proper values the following initial energy levels can be 1 1 AE -2.18 x 10-18 2 ninal ninitial obtained: n = 1 for 434.2nm. 1 AE -2.18 x 10-18 initial ninal n = 8 equal to n=6 n = 2 n = 3 n = 4 n = 5 Submit Request Answer for 656.5nm, for 486.3nm, and
Data from the appendices and the periodic table may be needed for these problems. Mantles for gas lanterns contain thorium, because it forms an oxide that can survive being heated to incandescence for long periods of time. Natural thorium is almost 100% 232Th.
Pls help ASAP. Pls show all work and explain thoroughly on what equation is being used and how you come up with the answer. Also, pls underline or square the final answers. Pls do part b for this question. The answer you r giving me is wrong. Pls find both E = E1 and E = E2 given Ef - E2 = 0.4 eV. The answer should be 9.4x10^-13, and 2.08x10^-7 respectively. Pls do correctly.
A hydrogen atom, initially at rest, absorbs an ultraviolet photon with a wavelength of λ = 169.8 nm. ▼ Part A What is the atom's final speed if it now emits an identical photon in a direction that is perpendicular to the direction of motion of the original photon? Express your answer to three significant figures and include appropriate units. .0 Value Submit ΜΑ Part B Units Request Answer μA What is the atom's final speed if it now emits an identical photon in a direction that is opposite to the direction of motion of the original photon? Express your answer to three significant figures and include appropriate units. ? Q Search P Pearson Copyright © 2022 Pearson Education Inc. All rights reserved. | Terms of Use | Privacy Policy | Permissions | Contact Us | ט 7:22 12/11/2
shift The uncertainty in posiHon of a Stationavy 4-8 kg block IS rOughly an atomic dlameter, or about 10:"m. -10 @ what is the minimum uncertainty in the blocks elocily? BHow tar m1gnt the block move in 7 years as a resuit of this velocity?