Activity 26-5. Atomic spectra [Accompanies Section 26-5] A certain type of atom (not hydrogen) has three...
Activity 26-5. Atomic spectra [Accompanies Section 26-5]
A certain type of atom (not hydrogen) has three energy levels numbered 1, 2, and 3, as shown in the upper illustration. There are three possible transitions between these levels that lead to emission of a photon: 3 → 1, 3 → 2, and 2 → 1.
The lower illustration shows the emission spectrum from a gas of these atoms. There are three emission lines, A, B, and C.
(a) Rank the photons emitted in the transitions 3 → 1, 3 → 2, and 2 → 1 in order of their energy, from highest energy to lowest energy. If any two photons have the same energy, state this. Explain how you made your ranking.
(b) Rank the photons emitted in the transitions 3 → 1, 3 → 2, and 2 → 1 in order of their wavelength, from longest wavelength to shortest wavelength. If any two photons have the same wavelength, state this. Explain how you made your ranking.
(c) On the illustration of the emission spectrum reproduced below, label each of the emission lines A, B, and C with the name of the transition (3 → 1, 3 → 2, or 2 → 1) that causes that emission line. Explain your reasoning.
Homework Answers
Ranking of transitions according to decreasing 1) photon energy 2) wavelength of emitted photon. Drawing of emission spectrum.
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Activity 26-5. Atomic spectra [Accompanies Section
26-5]
A certain type of atom (not hydrogen) has three...
A certain type of atom (not hydrogen) has three energy levels numbered 1, 2, and 3,...
A certain type of atom
(not hydrogen) has three energy levels numbered 1, 2, and
3, as shown in the upper illustration. There are three possible
transitions between these levels that lead to emission of a photon:
3 ® 1, 3 ® 2, and 2 ® 1.
The lower illustration shows the emission spectrum from a gas of
these atoms. There are three emission lines, A, B, and C.
(a) Rank the photons emitted in the transitions 3 ®...
Activity 26-4. Wave aspects of matter and of light [Accompanies Sections 26-3 and 26-4] (a) Rank...
Activity 26-4. Wave aspects of matter and of light [Accompanies Sections 26-3 and 26-4] (a) Rank the following particles in order of their de Broglie wavelength, from longest wavelength to shortest wavelength. If any two particles have the same de Broglie wavelength, state this. Explain how you made your ranking. (i) A proton (mass 1.67 x 10-27 kg) moving north at 1.0 x 10 m/s (ii) A proton (mass 1.67 x 10-27 kg) moving west at 2.0 x 10 m/s...
The hydrogen atomic emission spectrum includes a UV line with a wavelength of 92.323 nm. Photons...
The hydrogen atomic emission spectrum includes a UV line with a wavelength of 92.323 nm. Photons of this wavelength are emitted when the electron transitions to n_t = 1 as the final energy state. Is this line associated with a transition between different excited states or between an excited state and the ground state? different excited states between an excited state and the ground state What is the energy of the emitted photon with wavelength 92.323 nm? What was the...
Bohr Model - Line Spectra 2 -0.07.ww Bohr's Model - Line Spectrum in eV:E, --13.6.1-1.2.3.4. SE-EE...
Bohr Model - Line Spectra 2 -0.07.ww Bohr's Model - Line Spectrum in eV:E, --13.6.1-1.2.3.4. SE-EE Emitted lines Electrons in hydrogen atoms are in the n = 7 state (orbit). They can jump up to higher orbits or down to lower orbits. Emitted Spectral lines: When electrons in the higher orbits (with higher energies) jump DOWN to Lower orbits (with lower energies), energies are emitted in the form of emitted photons (light). The electrons jump from n = 7 state...
Data Report Sheet: The Atomic Spectra of Hydrogen A. Table 1: The Energy Levels of the...
Data Report Sheet: The Atomic Spectra of Hydrogen A. Table 1: The Energy Levels of the Hydrogen Atom Quantum Number, n Energy, kJ/mol Quantum Number, Energy, E, k/mol 1 -2.18x10/1--2.18x10J 2 -2.18x10"/2--5.45x10 B. Table 2. Calculation of Wavelengths Associated with Energy Transitions 2 1 3 4 5 E, -E, AE- 1.64 x 10J AE k.J/mol , nm thc/AE)- 121.5nm AE kJ/mol nm AE kJ/mol 3 , nm AE kJ/mol nm AE kJ/mol 5 7, nm 55 Table 3: Assignment of...
Activity 26-3. Compton scattering [Accompanies Section 26-3] In Compton scattering a photon collides with an electron...
Activity 26-3. Compton scattering [Accompanies Section 26-3] In Compton scattering a photon collides with an electron that is initially at rest. (a) Rank the following quantities in order from largest to smallest. If any two quantities are the same, state this. Explain how you made your ranking. (i) The wavelength of an x-ray photon (ii) The change in wavelength of an x-ray photon in Compton scattering when it scatters through an angle of 0° (that is, the photon continues in...
4. When a hydrogen atom is bombarded, the atom may be raised into a higher energy state. As the excited electron f...
4. When a hydrogen atom is bombarded, the atom may be raised into a higher energy state. As the excited electron falls back to the lower energy levels, light is emitted. What are the three longest-wavelength spectral lines emitted by the hydrogen atom as it returns to the n = 1 state from higher energy states? Give your answers to three significant figures. The lowest possible state, n = 1, corresponds to the electron in its smallest possible orbit; it...
The following is a diagram of energy states and transitions in the hydrogen atom -n infinity...
The following is a diagram of energy states and transitions in the hydrogen atom -n infinity ENERGY Match each of the responses below with the correct arrow from the figure. 1.) The emission line with the longest wavelength. 2.) The absorption line with the shortest wavelength. 3.) The emission line with the lowest energy 4.) The absorption line with the highest energy 5.) The emission line with the lowest frequency. 6.) The line corresponding to the ionization energy of hydrogen.
1. How many lines would be in the emission spectrum of hydrogen if the hydrogen atom...
1. How many lines would be in the emission spectrum of hydrogen if the hydrogen atom had only 4 energy levels? 2. What was the initial energy level of an electron if it was excited by a photon of wavelength 0.656µm and jumped to an energy level of 3? 3 .Calculate the frequency of visible light emitted by electron drop from n=233000 in Balmer series of hydrogen atom.
Lab Section: Experiment #11: The Atomic Spectrum of Hydrogen Advanced Study Assignment 1. Found in the...
Lab Section: Experiment #11: The Atomic Spectrum of Hydrogen Advanced Study Assignment 1. Found in the gas phase, the beryllium trication, Be has an energy level formula analogous to that of the hydrogen atom, since both species have only one electron. The energy levels of the Belon are given by the equation E, = -2100-kl/mole n = 1.2.3. - Calculate the energies in kl/mole for the four lowest energy levels of the Belon. a kl/mole kl/mole kJ/mole kl/mole b. One...
A certain type of atom
(not hydrogen) has three energy levels numbered 1, 2, and
3, as shown in the upper illustration. There are three possible
transitions between these levels that lead to emission of a photon:
3 ® 1, 3 ® 2, and 2 ® 1.
The lower illustration shows the emission spectrum from a gas of
these atoms. There are three emission lines, A, B, and C.
(a) Rank the photons emitted in the transitions 3 ®...
Activity 26-4. Wave aspects of matter and of light [Accompanies Sections 26-3 and 26-4] (a) Rank the following particles in order of their de Broglie wavelength, from longest wavelength to shortest wavelength. If any two particles have the same de Broglie wavelength, state this. Explain how you made your ranking. (i) A proton (mass 1.67 x 10-27 kg) moving north at 1.0 x 10 m/s (ii) A proton (mass 1.67 x 10-27 kg) moving west at 2.0 x 10 m/s...
The hydrogen atomic emission spectrum includes a UV line with a wavelength of 92.323 nm. Photons of this wavelength are emitted when the electron transitions to n_t = 1 as the final energy state. Is this line associated with a transition between different excited states or between an excited state and the ground state? different excited states between an excited state and the ground state What is the energy of the emitted photon with wavelength 92.323 nm? What was the...
Bohr Model - Line Spectra 2 -0.07.ww Bohr's Model - Line Spectrum in eV:E, --13.6.1-1.2.3.4. SE-EE Emitted lines Electrons in hydrogen atoms are in the n = 7 state (orbit). They can jump up to higher orbits or down to lower orbits. Emitted Spectral lines: When electrons in the higher orbits (with higher energies) jump DOWN to Lower orbits (with lower energies), energies are emitted in the form of emitted photons (light). The electrons jump from n = 7 state...
Data Report Sheet: The Atomic Spectra of Hydrogen A. Table 1: The Energy Levels of the Hydrogen Atom Quantum Number, n Energy, kJ/mol Quantum Number, Energy, E, k/mol 1 -2.18x10/1--2.18x10J 2 -2.18x10"/2--5.45x10 B. Table 2. Calculation of Wavelengths Associated with Energy Transitions 2 1 3 4 5 E, -E, AE- 1.64 x 10J AE k.J/mol , nm thc/AE)- 121.5nm AE kJ/mol nm AE kJ/mol 3 , nm AE kJ/mol nm AE kJ/mol 5 7, nm 55 Table 3: Assignment of...
Activity 26-3. Compton scattering [Accompanies Section 26-3] In Compton scattering a photon collides with an electron that is initially at rest. (a) Rank the following quantities in order from largest to smallest. If any two quantities are the same, state this. Explain how you made your ranking. (i) The wavelength of an x-ray photon (ii) The change in wavelength of an x-ray photon in Compton scattering when it scatters through an angle of 0° (that is, the photon continues in...
4. When a hydrogen atom is bombarded, the atom may be raised into a higher energy state. As the excited electron falls back to the lower energy levels, light is emitted. What are the three longest-wavelength spectral lines emitted by the hydrogen atom as it returns to the n = 1 state from higher energy states? Give your answers to three significant figures. The lowest possible state, n = 1, corresponds to the electron in its smallest possible orbit; it...
The following is a diagram of energy states and transitions in the hydrogen atom -n infinity ENERGY Match each of the responses below with the correct arrow from the figure. 1.) The emission line with the longest wavelength. 2.) The absorption line with the shortest wavelength. 3.) The emission line with the lowest energy 4.) The absorption line with the highest energy 5.) The emission line with the lowest frequency. 6.) The line corresponding to the ionization energy of hydrogen.
Lab Section: Experiment #11: The Atomic Spectrum of Hydrogen Advanced Study Assignment 1. Found in the gas phase, the beryllium trication, Be has an energy level formula analogous to that of the hydrogen atom, since both species have only one electron. The energy levels of the Belon are given by the equation E, = -2100-kl/mole n = 1.2.3. - Calculate the energies in kl/mole for the four lowest energy levels of the Belon. a kl/mole kl/mole kJ/mole kl/mole b. One...
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