Spectroscopy Chapter 4

When sunlight is split by a prism or diffraction grating it appears to emit a ___ spectra.

• absorption

• dark-line

• continuous

• bright-line

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Upon closer examination, sunlight (and all stars) actually emit ___ spectra.

• bright-line (or emission)

• absorption (or dark-line)

• continuous

• multiple

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The analysis of the way matter emits and absorbs radiation is called ___.

• astronomy

• chemistry

• spectroscopy

• atomic theory

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Spectroscopy can be used to study

• the atmosphere of Mars.

• the age of stars.

• spectroscopes.

• the Moon.

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Spectroscopy can also be used to study

• galaxies.

• the surface of Mercury.

• stellar composition.

• UFO's.

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___ or "bright-line" spectra can be used to study the elemental composition of stars.

• Absorption

• Dark

• Continuous

• Continuous

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When electrons of an element reach an "excited" state, ___ lines are produced.

• dark

• emission (bright)

• continuous

• invisible

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A ___ is used in astronomy to break down light like a prism.

• telescope

• spectroscope

• stethoscope

• microscope

Each element on the periodic table can be identified by its

• classification as a solid, liquid or gas.

• location on the table.

• ability to react to form compounds.

• unique spectral "fingerprint."

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Emission spectra emitted by an element (or compound) will produce ___ through a spectroscope.

• bright lines

• a continuous rainbow

• dark lines

• white light

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