The type of elements present in a gas can be determined by studying the ____.
A) number of ionized atoms in the gas
B) energy of the electrons being emitted by the gas
C) number of photons being absorbed or emitted by the gas
D) wavelengths of photons absorbed or emitted from the gas
E) number of excited atoms in the gas

Question

Quizplus · Accepted Answer

The wavelengths of photons absorbed or emitted from a gas are unique to each element, acting like a fingerprint. This is the basis of spectroscopy, which allows for the identification of elements in a sample by analyzing the spectrum of light emitted or absorbed by the gas.

The Type of Elements Present in a Gas Can Be