Universe: Stars And Galaxies
6th Edition
ISBN: 9781319115098
Author: Roger Freedman, Robert Geller, William J. Kaufmann
Publisher: W. H. Freeman
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Question
Chapter 5, Problem 38Q
To determine
(a)
The wavelength of
To determine
(b)
To draw:
The schematic diagram of hydrogen atom which indicates the energy transition for spectral lines.
To determine
(c)
The part of
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Students have asked these similar questions
A photoelectron is emitted from K shell (n = 1) of a carbon atom, and an election in L shell (n = 2) moves down to the vacancy in K shell. What is the wavelength, in the unit of nm, of the photon emitted during this transition?
Use for the energy difference between two states in an atom.
E0 = 13.6 eV and atomic number of carbon is Z = 12.
Use σ = 1 for the transition to K shell and σ = 7.4 for the transition to L shell
Q) A hydrogen atom emits radiation as a result of an electron transition to a lower
energy level. Determine the highest frequency possible due to this transition if the
atom emits a series of lines that lie in the visible part of the spectrum. Then, if the
electron ends up in n = 1 level, prove that the atom emits a series of lines of
wavelength that are not in the visible part of the spectrum.
a. Calculate the wavelength of light, in nanometers, emitted when a hydrogen atom relaxes from n = 7 to n = 3.
(nm)
λ 216.62
b. Is this light in the visible region of electromagnetic spectrum?
O Nope
O Yup
c. If so, what color is it?
O Yves Saint Laurent yellow
O Karl Lagerfeld says it's chartreuse
O Basquiat red pastel
O It isn't a color that has a name because we can't see it
d. If the wavelength of light emitted was instead 656.7845 nm and emanated from an electron falling down from the n = 3 level, what level did the electron start out in? Round your answer
to the nearest integer: 5
Chapter 5 Solutions
Universe: Stars And Galaxies
Ch. 5 - Prob. 1QCh. 5 - Prob. 2QCh. 5 - Prob. 3QCh. 5 - Prob. 4QCh. 5 - Prob. 5QCh. 5 - Prob. 6QCh. 5 - Prob. 7QCh. 5 - Prob. 8QCh. 5 - Prob. 9QCh. 5 - Prob. 10Q
Ch. 5 - Prob. 11QCh. 5 - Prob. 12QCh. 5 - Prob. 13QCh. 5 - Prob. 14QCh. 5 - Prob. 15QCh. 5 - Prob. 16QCh. 5 - Prob. 17QCh. 5 - Prob. 18QCh. 5 - Prob. 19QCh. 5 - Prob. 20QCh. 5 - Prob. 21QCh. 5 - Prob. 22QCh. 5 - Prob. 23QCh. 5 - Prob. 24QCh. 5 - Prob. 25QCh. 5 - Prob. 26QCh. 5 - Prob. 27QCh. 5 - Prob. 28QCh. 5 - Prob. 29QCh. 5 - Prob. 30QCh. 5 - Prob. 31QCh. 5 - Prob. 32QCh. 5 - Prob. 33QCh. 5 - Prob. 34QCh. 5 - Prob. 35QCh. 5 - Prob. 36QCh. 5 - Prob. 37QCh. 5 - Prob. 38QCh. 5 - Prob. 39QCh. 5 - Prob. 40QCh. 5 - Prob. 41QCh. 5 - Prob. 42QCh. 5 - Prob. 43QCh. 5 - Prob. 44QCh. 5 - Prob. 45QCh. 5 - Prob. 46QCh. 5 - Prob. 47QCh. 5 - Prob. 48QCh. 5 - Prob. 49QCh. 5 - Prob. 50QCh. 5 - Prob. 51Q
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- The ion Li2+ makes ail atomic transition from ail n = 4 state to ail n = 2 state, (a) What is the energy of the photon emitted during the transition? (b) What is the wavelength of the photon?arrow_forward(a) What is the minimum value of 1 for a subshell that has 11 electrons in it? (b) If this subshell is in the n=5 shell, what is the spectroscopic notation for this atom?arrow_forwardIn extreme-temperature environments, such as those existing in a solar corona, atoms may be ionized by undergoing collisions with other atoms. One example of such ionization in the solar corona is the presence of C5+ ions, detected in the Fraunhofer spectrum. (a) By what factor do the energies of the C5+ ion scale compare to the energy spectrum of a hydrogen atom? (b) What is the wavelength of the first line in the Paschen series of C5+ ? (c) In what part of the spectrum are these lines located?arrow_forward
- (a) What is the minimum value of l for a subshell that contains 11 electrons? (b) If this subshell is in the n = 5 shell, what is the spectroscopic notation for this atom?arrow_forwardThe light observed that is emitted by a hydrogen atom is explained by a simple model of its structure with one proton in its nucleus and an electron bound to it, but only with internal energies of the atom satisfying EH=−RH/n2EH=−RH/n2 where RHRH is the Rydberg constant and nn is an integer such as 1, 2, 3 ... and so on. When a hydrogen atom in an excited state emits light, the photon carries away energy and the atom goes into a lower energy state. Be careful about units. The Rydberg constant in eV is 13.605693009 eV That would be multiplied by the charge on the electron 1.602× 10-19 C to give 2.18× 10-18 J A photon with this energy would have a frequency f such that E=hf. Its wavelength would be λ = c/f = hc/E. Sometimes it is handy to measure the Rydberg constant in units of 1/length for this reason. You may see it given as 109737 cm-1 if you search the web, so be aware that's not joules. The following questions are intended to help you understand the connection between…arrow_forwardA)Calculate the frequency when an electron drops from n=5 to the n=4 level in a hydrogen atom. Round your answer to 4 significant digits. B)An electron in the hydrogen atom makes a transition from an energy state of principal quantum number ni to the n=2 state. If the photon emitted has a wavelength of 434nm , what is the value of ni? Round your answer to the nearest whole number.)arrow_forward
- 4. a. An electron in a hydrogen atom falls from an initial energy level of n-5 to a final level of n - 2. Find the energy, frequency, and wavelength of the photon that will be [For hydrogen: E-13.6 eV/n²] emitted for this sequence. b. A photon of energy 2.794 eV is absorbed by a hydrogen atom, causing its electron to be released with a kinetic energy of 2.250 eV. In what energy level was the electron? c. Find the wavelength of the matter wave associated with a proton moving at a speed of 350 m/s.arrow_forward1. A cube of iron (atomic number 26), whose side measures 1 ft (30.48cm), is floating in a dark space. It is observed to emit blackbody radiation at the power of 200oW. (a) Would you dare to touch it for $20? Find the temperature of the cube before you answer. (b) Find the peak frequency of the spectrum, and compute the energy of photon at the frequency. Give the energy in units of electron-volt (eV). (c) What would be the temperature for the radiation if the cube were made of alu- minum (atomic number 13)?arrow_forwardIf you look at it, there is an Ag atom with an atomic number of 47. Then, there are electrons from outside hitting electrons in the base shell (n=1) : a. how much energy does the electron need to bounce off? and is there any energy absorbed by the electrons? b. How much the radiation energy and wavelength produced by the transition of electrons from the L shell (n=2) to the ground shell (n=1) in filling the electron holes?arrow_forward
- a.) Find the frequency in Hertz of radiation with energy of 2.179 x 10-18 J per photon. b.) What frequency of light would be needed to make an electron in a Hydrogen atom jump from n=1 to n=3? c.) A spectral line is measured to have a wavelenght of 1000nm. Is this within the Balmer series?arrow_forwardThe allowed energies of a simple atom are 0.00 eV. 4.12 eV, and 6.44 eV. ▼ Part A What wavelengths appear in the atom's emission spectrum? Enter your answers in ascending order separated by commas. 195] ΑΣΦ ? nm Request Answer Part B What wavelengths appear in the atom's absorption spectrum? Enter your answers in ascending order separated by commas. 195] ΑΣΦ ? nm Submit Submit Request Answerarrow_forwardThe first five energy levels of the hydrogen atom are at −13.6 eV, −3.4 eV,−1.51 eV, −0.85 eV, and −0.54 eV. The emission spectrum of a hydrogen plasma lamp is a set of bright lines corresponding to all the possible transitions between these five levels.Sketch the far ultraviolet part of the spectrum you would expect from 80 nm wavelength to 130 nm. You should provide an x-axis with tickmarks and labels in nm, and label each brightline with its wavelength. Show your calculations of the wavelengths.arrow_forward
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