Spectral lines are like a _ of absorbed or emission energy in a spectrum.
Correct answer: B. Fingerprint pattern
- A. Charged pattern
- B. Fingerprint pattern
- C. Discharged pattern
- D. None of these options is correct
Explanation
Option B correctly states that spectral lines are like a "fingerprint pattern" of absorbed or emission energy in a spectrum. This analogy is commonly used because spectral lines are unique to each element or molecule, similar to how fingerprints are unique to individuals. Spectral lines serve as distinctive markers that allow scientists to identify the composition of substances based on the wavelengths of light they absorb or emit. Therefore, option B is correct.
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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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