Which of the following X-rays have the highest energy?
Correct answer: B. Kβ
- A. Kα
- B. Kβ
- C. Both A and B
- D. None of the above
Explanation
Kα energy (EL - EK) is less than Kβ energy (EM - EK), as Kβ involves an electron transition from the M shell to the K shell.
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About Atomic Spectra
Atoms emit or absorb light at specific wavelengths because electrons occupy quantized energy levels and change levels by absorbing or releasing photons. The topic covers emission and absorption spectra, spectral series, hydrogen’s line spectrum, energy-level transitions, and the relation between wavelength, frequency and photon energy.
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