Discrete spectral lines occur when excitation takes place in a
A)solid.
B)liquid.
C)gas.
D)superconductor.
E)all of these

Question

Quizplus · Accepted Answer

Discrete spectral lines occur when atoms in a gas are excited and emit light of specific wavelengths that correspond to the energy level transitions of the atoms. Solid, liquid, and superconductor materials do not exhibit discrete spectral lines in the same manner as gases.

Discrete Spectral Lines Occur When Excitation Takes Place in a