Atoms in a Low-Density, Hot Gas (E

Multiple Choice

Atoms in a low-density, hot gas (e.g., in a fluorescent lamp or a neon tube) emit a spectrum that is

A) a series of emissions at specific colors whose wavelengths change in position as the gas temperature is changed.
B) a series of emissions at certain wavelengths that are the same for all atoms but vary with temperature.
C) a series of specific colors unique to the type of atom in the tube but fixed in position when the gas temperature changes.
D) continuous over all visible wavelengths, with maximum intensity in the red.