Solution: An electron in a hydrogen atom is excited from the

Chapter 7, Problem 7.126

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An electron in a hydrogen atom is excited from the ground state to the n 5 4 state. Comment on the correctness of the following statements (true or false). (a) n 5 4 is the first excited state. (b) It takes more energy to ionize (remove) the electron from n 5 4 than from the ground state. (c) The electron is farther from the nucleus (on average) in n 5 4 than in the ground state. (d) The wavelength of light emitted when the electron drops from n 5 4 to n 5 1 is longer than that from n 5 4 to n 5 2. (e) The wavelength the atom absorbs in going from n 5 1 to n 5 4 is the same as that emitted as it goes from n 5 4 to n 5 1

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