Question

Which of the following statements correctly describe atomic line spectra? (Select all that apply.)

A. They are continuous spectra.
B. They result from electron transitions.
C. Each element has a unique line spectrum.
D. They are observed in solids only.

Answer 1

Atomic line spectra consist of discrete lines at specific wavelengths caused by electron transitions between energy levels within atoms, and each element has a unique line spectrum. These spectra are not continuous and are observable in more than just solids.

Step-by-step explanation:

Atomic line spectra are produced by electron transitions within an atom. These transitions result from an electron moving between different energy levels or orbits around the nucleus. When an electron falls from a higher energy level to a lower one, it emits a quantum of energy in the form of light. This light corresponds to a particular wavelength, which we see as a line in the spectrum. Since each element has electrons that occupy unique energy levels, these transitions produce a unique set of wavelengths for each element, leading to a unique atomic line spectrum for that element.

• Atomic line spectra are not continuous; they consist of discrete lines at specific wavelengths.
• The line spectra are indeed the result of electron transitions between different energy levels within an atom.
• It is correct to say that each element has a unique line spectrum.
• Atomic line spectra can be observed not only in solids but also in gases; this statement is incorrect as they are not exclusive to solids.