The atomic emission spectrum of sodium (LEFT) and the molecular flame emission spectrum of CaOH (RIGHT) are given below. Explain why the CaOH spectrum is much broader than the sodium emission line. nision 588 590 S50 5540 520 S500 S40 Wavelength, nm Wavelengh, A A. Sodium atom has many vibrational and rotational states and thus many excited energy levels. B. Sodium is present largely as atoms that emit at only a few discrete wavelengths. C. The molecule CAOH has many vibrational and rotational states and thus many excited energy levels. D. A and B E. B and C Intensity

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The atomic emission spectrum of sodium (LEFT) and the molecular flame emission spectrum of CaOH
(RIGHT) are given below. Explain why the CaOH spectrum is much broader than the sodium emission
line.
nision
588
590
S50
5540
520
S500
S40
Wavelength, nm
Wavelengh, A
A. Sodium atom has many vibrational and rotational states and thus many excited energy levels.
B. Sodium is present largely as atoms that emit at only a few discrete wavelengths.
C. The molecule CAOH has many vibrational and rotational states and thus many excited energy levels.
D. A and B
E. B and C
Intensity
Transcribed Image Text:The atomic emission spectrum of sodium (LEFT) and the molecular flame emission spectrum of CaOH (RIGHT) are given below. Explain why the CaOH spectrum is much broader than the sodium emission line. nision 588 590 S50 5540 520 S500 S40 Wavelength, nm Wavelengh, A A. Sodium atom has many vibrational and rotational states and thus many excited energy levels. B. Sodium is present largely as atoms that emit at only a few discrete wavelengths. C. The molecule CAOH has many vibrational and rotational states and thus many excited energy levels. D. A and B E. B and C Intensity
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