Discrete spectral lines are observed when excitation occurs in a
A)solid.
B)liquid.
C)gas.
D)superconductor.
E)all of the above

Question

Quizplus · Accepted Answer

Discrete spectral lines are observed when atoms in a gas are excited and emit light at specific wavelengths, corresponding to the energy differences between the excited and ground states. Solid, liquid, and superconductor materials have a large number of closely spaced energy states that produce a broad range of wavelengths, resulting in continuous spectra.

Discrete Spectral Lines Are Observed When Excitation Occurs in a