An ionic atom which is equivalent to a hydrogen atom has a wavelength equal to 1/4th of hydrogen lines is:
Correct answer: A. He+
- A. He+
- B. Li++
- C. Ne+9
- D. Na10+
Explanation
Expalnation will be adoption: A An ionic atom is equivOption: A ydrogen atom has wavelength equal to ¼ of the wavelengths of hydrogen lines. The ion will be : He† Option B is wrong because An ionic atom is equivalent to hydrogen atom has wavelength equal to ¼ of the wavelengths of hydrogen lines is not Li††Option C ; Ne†⁹ will also not be that ion..Option D : Na†¹⁰ will also not be that ion..
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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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