21st Century Astronomy And Learning Astronomy By Doing Astronomy (fifth Edition)
5th Edition
ISBN: 9780393613360
Author: Laura Kay, Ana Larson, Stacy Palen, George Blumenthal
Publisher: W. W. Norton & Company
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Chapter 5, Problem 21QP
To determine
The maximum period in which the atom will remain in the higher energy state.
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Calculate the wavelength, in nanometers, of the photon emitted when the electron in a hydrogen atom
transitions from the level n1 = 8 to level n2 = 2. Use three significant figures in your answer.
2.1 Determine the wavelength of photon emitted when an electron moves from n = 2 orbit to n = 1 orbit in a gold atom. If Z is the atomic number, and for gold Z = 79. Also, by how much energy will the bombarding electrons excite the gold atom to radiate this emission line?
A hydrogen atom in an n=2 state absorbs a photon.
Part a: What wavelength photons might be emitted by the atom following absorption?You should find 10 total possible wavelengths, with the shortest being around 100 nm and the largest being around 1900nm.
What would the equation be in order to find these wavelengths?
Chapter 5 Solutions
21st Century Astronomy And Learning Astronomy By Doing Astronomy (fifth Edition)
Ch. 5.1 - Prob. 5.1CYUCh. 5.1 - Prob. 5.2CYUCh. 5.2 - Prob. 5.3CYUCh. 5.3 - Prob. 5.4CYUCh. 5.4 - Prob. 5.5CYUCh. 5.5 - Prob. 5.6CYUCh. 5 - Prob. 1QPCh. 5 - Prob. 2QPCh. 5 - Prob. 3QPCh. 5 - Prob. 4QP
Ch. 5 - Prob. 5QPCh. 5 - Prob. 6QPCh. 5 - Prob. 7QPCh. 5 - Prob. 8QPCh. 5 - Prob. 9QPCh. 5 - Prob. 10QPCh. 5 - Prob. 11QPCh. 5 - Prob. 12QPCh. 5 - Prob. 13QPCh. 5 - Prob. 14QPCh. 5 - Prob. 15QPCh. 5 - Prob. 16QPCh. 5 - Prob. 17QPCh. 5 - Prob. 18QPCh. 5 - Prob. 19QPCh. 5 - Prob. 20QPCh. 5 - Prob. 21QPCh. 5 - Prob. 22QPCh. 5 - Prob. 23QPCh. 5 - Prob. 24QPCh. 5 - Prob. 25QPCh. 5 - Prob. 26QPCh. 5 - Prob. 27QPCh. 5 - Prob. 28QPCh. 5 - Prob. 29QPCh. 5 - Prob. 30QPCh. 5 - Prob. 31QPCh. 5 - Prob. 32QPCh. 5 - Prob. 33QPCh. 5 - Prob. 34QPCh. 5 - Prob. 35QPCh. 5 - Prob. 36QPCh. 5 - Prob. 37QPCh. 5 - Prob. 38QPCh. 5 - Prob. 39QPCh. 5 - Prob. 40QPCh. 5 - Prob. 41QPCh. 5 - Prob. 42QPCh. 5 - Prob. 43QPCh. 5 - Prob. 44QPCh. 5 - Prob. 45QP
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- A electron in a hydrogen atom transitions from the n=2 energy level to the ground state (n=1). What is the energy of the photon emitted? Give your answer in eV.arrow_forwardWhat is the frequency of light (in Hz) of a photon emitted when an electron in a hydrogen atom undergoes a transition from the n = 4 energy state to the n=2 energy state? Express your answer to at least two significant figures.arrow_forwardA hydrogen atom is excited from its ground state to the n = 4 state. The atom subsequently emits three photons, one of which has a wavelength of 1882 nm. What are the wavelengths of the other two photons? Express your answers in nanometers. Enter your answers in ascending order separated by a comma.arrow_forward
- n = 5 n = 4 3. Refer to the illustration on the right. In a set of experiments on a hypothetical one-electron atom, you measure the wavelengths of the photons emitted from transitions ending in the ground state (n=1). You also observe that it takes 15 eV to ionize this atom. (a) What is the energy of the atom in each of the levels (i.e. n=1, n=2, n=3, n=4, n=5)? (b) If an electron made a transition from the n=4 to the n=2 level, what wavelength of light n = 3 n = 2 would it emit? n = 1 A = 73.86 nm A = 75.63 nm A=79.76 nm A = 94.54 nmarrow_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_forwardAn electron in a hydrogen atom transitions from the n=5 state to the n=1 state, emitting a photon. a. What is the energy in eV of the emitted photon? b. What is the wavelength in nanometers of the emitted photon? c. To what region of the electromagnetic spectrum does the emitted photon belong?arrow_forward
- 8. Considering the Hydrogen atom, answer the following questions. a) Looking at transitions between the first 6 energy levels (n = 1 through n = 6), what is the longest and shortest wavelength of light that can be emitted? Clearly label both. b) A hydrogen atom makes a transition from a higher energy level down to the second excited state (n = 2). If the energy of the emitted photon was 1.89 eV, what initial energy level was the hydrogen in?arrow_forwardWhat is the wavelength of light (in nm) emitted when an electron in a hydrogen atom undergoes a transition from the n = 4 energy state to the n = 2 energy state? Express your answer to the nearest nm. Answer:arrow_forwardA hydrogen atom has been found in the n = 4 state. What is the shortest wavelength photon that could be emitted when the hydrogen atom relaxes from n=4 to a lower energy state? Hint: there are a few emissions possible from n=4 to any of the n values below. Think of how the energies of these transitions differ, recall that the higher is the transition energy the shorter is the wavelength. For your final conversion, recall that 1 μm = 10-6 marrow_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_forwardAK éléctron in a hydrogen atom makes a transition from the state n= 12 to the state n= 2. Give the wavelength of the photon emitted during this transition in units of nm. Round your answer to 2 significant figures. Add your answerarrow_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
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