Simplified. The absorption spectra of ions have been used to identify the presence of the elements...

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Simplified. The absorption spectra of ions have been used to identify the presence of the elements in the atmospheres of the sun and other stars. What is the energy of a photon (in J) that is absorbed by He ions, when an electron is excited from the Bohr orbit with n = 1 to the n = 6 state? The energy of an electron in the nth level is 2 B2 2 where B = 2.18 x 10-1° J and Z = charge on nucleus (number of protons). Answer: 2.11944E-18 X

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