Question

select all that apply select all the correct statements about spectral line identification. some spectral lines are not in the visible part of the electromagnetic spectrum. molecules can emit and absorb specific, unique colors of light. absorption lines are formed when atoms lose energy. every hydrogen atom in a gas cloud emits the same pattern of spectral lines.

Explanation:

• Spectral lines can exist in non - visible parts of the EM spectrum like UV and IR, so the first statement is correct.
• Molecules have characteristic absorption and emission spectra corresponding to specific light colors (energies), making the second statement correct.
• Absorption lines form when atoms gain energy, not lose energy, so the third statement is incorrect.
• Hydrogen atoms have a well - defined and consistent spectral line pattern, so the fourth statement is correct.

Answer:

• Some spectral lines are not in the visible part of the electromagnetic spectrum.
• Molecules can emit and absorb specific, unique colors of light.
• Every hydrogen atom in a gas cloud emits the same pattern of spectral lines.