Which of the following statements is true about emission spectra? a. Emission spectra form dark lines on a continuous spectrum. b. The wavelengths of the spectrum are characteristic of the element emitting the light. c. The wavelengths of the spectrum are the same for all atomic gases. d. The wavelengths of the spectrum are the same for all elements.

Question

Chemistry

Azul Zhang

30 August, 04:22

Which of the following statements is true about emission spectra? a. Emission spectra form dark lines on a continuous spectrum. b. The wavelengths of the spectrum are characteristic of the element emitting the light. c. The wavelengths of the spectrum are the same for all atomic gases. d. The wavelengths of the spectrum are the same for all elements.

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Erik · Answer 1

First, rule out c and d because the emission spectra is the identity card to the atom. as for a, this is the definition of the absorption spectra. (think of it that way: emission - - > emission of a photon, and photon is a light, so you'll see a coloured line for each transition). So the answer is definitely B.