Exam 4: Spectroscopy: The Inner Workings of Atoms

If a source of light is approaching us at 3,000 km/sec,then all its waves are:

The ________ spitting of the spectral lines is due to a strong magnetic field present.

________ is the scientific study of the distribution of electromagnetic waves by energy and how these patterns are created in atoms and molecules.

Spectral lines are often referred to as the stars' "fingerprints" because:

A low-density,hot gas produces a continuous spectrum.

The spectra of molecules are more complex because molecules can vibrate and ________ instead of just exhibiting electronic transitions like atoms.

If the rest wavelength of a certain line is 600 nm,but we observe it at 594 nm,then:

Why are molecular lines usually found in infrared and radio regions,not as visible lines?

If a fire truck's siren is rising in pitch,it must be approaching us.

In a hydrogen atom,a transition from the third to the second energy level will produce:

Describe how Einstein used the photoelectric effect to support the particle theory of light and photons.

What is spectroscopy?

Why are molecular lines more complex than elemental spectral lines?

In an atom,electrons can have only specific,allowed orbital energies.

Molecular spectra,like elemental ones,involve only the vibration of the particles.

In space,positive ions are the result of:

________ is the process of stripping electrons from their atoms.

The particles which enter into chemical reactions are the atom's:

The Doppler effect can reveal the rotation speed of a star by the splitting of the spectral lines.

The emission line for a given atom shows spectral features at the ________ location as in its absorption spectrum.