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(v.) The lowest energy level in a helium atom (the ground state) is -24.6eV. There are a number of other energy levels, one of which is at -21.4eV. a.) Define the electron volt, eV. b.) Explain the significance of the negative signs in the values quoted. c.) Calculate the wavelength and mass of the radiation emitted when an electron returns to the ground state from the energy level at -21.4eV. To which part of the electromagnetic spectrum does it belong?

(v.) The lowest energy level in a helium atom (the ground state) is -24.6eV. There are a number of other energy levels, one of which is at -21.4eV. a.) Define the electron volt, eV. b.) Explain the significance of the negative signs in the values quoted. c.) Calculate the wavelength and mass of the radiation emitted when an electron returns to the ground state from the energy level at -21.4eV. To which part of the electromagnetic spectrum does it belong?

Modern Physics
Modern Physics
3rd Edition
ISBN:9781111794378
Author:Raymond A. Serway, Clement J. Moses, Curt A. Moyer
Publisher:Raymond A. Serway, Clement J. Moses, Curt A. Moyer
Chapter3: The Quantum Theroy Of Light
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(v.) The lowest energy level in a helium atom (the ground state) is -24.6eV. There are a number of other energy levels, one of which is at -21.4eV. a.) Define the electron volt, eV. b.) Explain the significance of the negative signs in the values quoted. c.) Calculate the wavelength and mass of the radiation emitted when an electron returns to the ground state from the energy level at -21.4eV. To which part of the electromagnetic spectrum does it belong?
Transcribed Image Text:(v.) The lowest energy level in a helium atom (the ground state) is -24.6eV. There are a number of other energy levels, one of which is at -21.4eV. a.) Define the electron volt, eV. b.) Explain the significance of the negative signs in the values quoted. c.) Calculate the wavelength and mass of the radiation emitted when an electron returns to the ground state from the energy level at -21.4eV. To which part of the electromagnetic spectrum does it belong?
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