An atom is ionized so that it has only one electron. when the electron drops from the n = 3 shell to the n = 1 shell, an x-ray of wavelength 140.70 pm is emitted. what is the atomic number?
An atom is ionized so that it has only one electron. when the electron drops from the n = 3 shell to the n = 1 shell, an x-ray of wavelength 140.70 pm is emitted. what is the atomic number?
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