Bundle: Foundations Of Astronomy, Loose-leaf Version, 14th + Webassign, Printed Access Card, Single-term
14th Edition
ISBN: 9780357292990
Author: Michael A. Seeds, Dana Backman
Publisher: Cengage Learning
expand_more
expand_more
format_list_bulleted
Question
Chapter 10, Problem 8RQ
To determine
Compare the time which an electron can stay in a metastable state with that of in ordinary energy state and give reason for emission line due to transition from metastable state is forbidden.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
A) What is the approximate wavelength emitted from helium represented by the bright yellow emission line below? What is it's frequency in HZ and energy in eV? (1 eV= 1.6 x 10-19 joules).
B) If the excited helium electron that emits a yellow photon in this line starts with a potential energy of 8 eV, what is the potential energy of the electron afterwards? Assume that the emission of a yellow photon is allowed by the laws of quantum mechanics. Also don't worry about the other electron.
suppose we detect red photons at 102.57 nm emitted by electrons dropping from the n=3 to the n= 1 orbital in hydrogen. If the temperature of the cloud doubled, what would be the wavelength photo of the photons emitted by the transition?
A hydrogen atom in an excited 5f state is in a magnetic fi eld of 3.00 T. How many energy states can the electron have in the 5f subshell? (Ignore the magnetic spin effects.) What is the energy of the 5f state in the absence of a magnetic fi eld? What will be the energy of each state in the magnetic field?
Chapter 10 Solutions
Bundle: Foundations Of Astronomy, Loose-leaf Version, 14th + Webassign, Printed Access Card, Single-term
Ch. 10 - Prob. 1RQCh. 10 - Prob. 2RQCh. 10 - Prob. 3RQCh. 10 - Prob. 4RQCh. 10 - Prob. 5RQCh. 10 - Prob. 6RQCh. 10 - Prob. 7RQCh. 10 - Prob. 8RQCh. 10 - Prob. 9RQCh. 10 - Prob. 10RQ
Ch. 10 - Prob. 11RQCh. 10 - Prob. 12RQCh. 10 - Prob. 13RQCh. 10 - Why is the ISM transparent at near-infrared and...Ch. 10 - Prob. 15RQCh. 10 - Prob. 16RQCh. 10 - Prob. 17RQCh. 10 - Prob. 18RQCh. 10 - Prob. 19RQCh. 10 - Prob. 20RQCh. 10 - Prob. 21RQCh. 10 - Name two processes (or objects) that remove...Ch. 10 - Prob. 23RQCh. 10 - Prob. 24RQCh. 10 - Prob. 25RQCh. 10 - Prob. 1PCh. 10 - Prob. 2PCh. 10 - Prob. 3PCh. 10 - Prob. 4PCh. 10 - The number density of air in a childs balloon is...Ch. 10 - Calculate the frequency in megahertz (MHz) of the...Ch. 10 - Prob. 7PCh. 10 - Prob. 8PCh. 10 - Prob. 9PCh. 10 - Prob. 10PCh. 10 - Prob. 1SOPCh. 10 - Prob. 2SOPCh. 10 - Prob. 1LTLCh. 10 - Prob. 2LTLCh. 10 - Prob. 3LTLCh. 10 - Prob. 4LTLCh. 10 - Prob. 5LTL
Knowledge Booster
Similar questions
- Please fast...arrow_forwardSuppose that a hydrogen atom makes a transition from a high-n state to a low-n state, emitting a photon in the process. Calculate the energy and wavelength of the photon for each of the following transitions: 2 → 1, 3 → 2, 4 → 2, 5 → 2.arrow_forwardCalculate the maximum wavelength that hydrogen in its ground state can absorb. What would be the next maximum wavelength?arrow_forward
- In the relativistic treatment of the hydrogen atom (excluding QED), the 251/2 and 2P1/2 levels are found to be degenerate. Which of the following best describes why? Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer. a The degeneracy is a result of the rotational symmetry of the H-atom b d e The Darwin and spin-orbit terms exactly cancel for both levels Each individual contribution (mass-velocity, Darwin and spin-orbit) to the splitting only depend on the total angular momentum quantum number j The mass-velocity and Darwin terms exactly cancel for both levels The degeneracy is due to a subtle symmetry of a 1/r potential when n = 1 and would no longer be the case for other n.arrow_forwarda) Calculate the energy of the emissive transition with the lowest energy possible for the Lyman series, for a mole of hydrogen atoms. Express your answer in joules/mol. b) Is this transition in the visible spectral domain? If not, in which region is it located?arrow_forwardIn a Franck–Hertz experiment on hydrogen atoms, the first two excitation thresholds occur at 10.1 and 11.9 eV. Three optical emission lines are associated with these levels. Sketch an energy-level diagram for hydrogen atoms based on this information. Identify the three transitionsassociated with these emission lines. Calculate the wavelength of each emitted line.arrow_forward
- Doubly ionized lithium (Li++) emits a photon after transitioning from the n = 3 excited state directly back to the ground state. A) Calculate the mass of the lithium ion. (Atomic mass = 6.015123 u; electron mass = 5.485799 x 10-4 u) Express your answer in unified atomic mass units and to four significant figures. B) After the emission of the photon, the ion recoils. Calculate the recoil speed. Express your answer to three significant figures in meters/second.arrow_forwardAsap plzzzarrow_forwardPlease asaparrow_forward
- The hydrogen atom was initially at the state where n=3 and l=2. It then decays to a lower state releasing a photon. What are the possible photon energies(in [eV]) that may be observed?arrow_forwardSuppose that you have 1 mol of hydrogen atoms in the ground state. If the atoms are irradiated with light, what is the minimum number of photons required to excite all of them? [The answer is a number. Use a decimal point. Round your answer to three decimal places, for example 2.000E-10 or 1.140.] *arrow_forwardThe solar corona is so hot that most atoms in it are ionized.Consider a hydrogen-like atom in the corona that has only a single electron. Construct a problem in which you calculate selected spectral energies and wavelengths of the Lyman, Balmer, or other series of this atom that could be used to identify its presence in a very hot gas. You will need to choose the atomic number of the atom, identify the element, and choose which spectral lines to consider.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Stars and Galaxies (MindTap Course List)PhysicsISBN:9781337399944Author:Michael A. SeedsPublisher:Cengage Learning
Foundations of Astronomy (MindTap Course List)PhysicsISBN:9781337399920Author:Michael A. Seeds, Dana BackmanPublisher:Cengage Learning
Modern PhysicsPhysicsISBN:9781111794378Author:Raymond A. Serway, Clement J. Moses, Curt A. MoyerPublisher:Cengage Learning
University Physics Volume 3PhysicsISBN:9781938168185Author:William Moebs, Jeff SannyPublisher:OpenStax
Principles of Physics: A Calculus-Based TextPhysicsISBN:9781133104261Author:Raymond A. Serway, John W. JewettPublisher:Cengage Learning
College PhysicsPhysicsISBN:9781285737027Author:Raymond A. Serway, Chris VuillePublisher:Cengage Learning
Stars and Galaxies (MindTap Course List)
Physics
ISBN:9781337399944
Author:Michael A. Seeds
Publisher:Cengage Learning
Foundations of Astronomy (MindTap Course List)
Physics
ISBN:9781337399920
Author:Michael A. Seeds, Dana Backman
Publisher:Cengage Learning
Modern Physics
Physics
ISBN:9781111794378
Author:Raymond A. Serway, Clement J. Moses, Curt A. Moyer
Publisher:Cengage Learning
University Physics Volume 3
Physics
ISBN:9781938168185
Author:William Moebs, Jeff Sanny
Publisher:OpenStax
Principles of Physics: A Calculus-Based Text
Physics
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
College Physics
Physics
ISBN:9781285737027
Author:Raymond A. Serway, Chris Vuille
Publisher:Cengage Learning