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Spectroscopy: Summary
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<font size="5" color="#FFFFFF" face="Verdana, Arial, Helvetica, sans-serif"><strong>Spectroscopy:</strong>
Summary</font>
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<font size="4" face="Verdana, Arial, Helvetica, sans-serif">Spectroscopy
is a powerful tool for identifying atoms. An atom's spectrum is like
its fingerprint −− unique to that particular kind of atom. Since
every type of atom emits and absorbs only photons of particular
frequencies, one can compare patterns of spectral emissions in order
to identify the atomic constituents of matter. These are what you
have learned in this activity. Please answer the following questions
to complete this activity. </font>
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<font size="4" face="Arial, Helvetica, sans-serif"><strong>A
scientist measured the spectrum of a gas supposedly composed purely
of Type-C atoms, but he found the spectrum revealed that the gas was
contaminated. Can you identify which type of atoms could have
possibly contaminated the gas? (Check all that apply.)</strong></font>
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<img src="mixture.gif">
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<font size="3" face="Arial, Helvetica, sans-serif">(The box in the
above image shows the spectra of four types of atoms: A, B, C and D.
The spectrum below the box shows the result he obtained.)</font>
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Type A
Type B
Type D
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<font size="4" face="Arial, Helvetica, sans-serif"><strong>Of the
following transitions between the energy levels shown in the right
graph, which results in photons with the lowest possible frequency?</strong></font>
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<img src="level.gif">
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<p class="firstp" align="center">
<strong>You have reached the end of the activity.<br>Please submit a
report.</strong>
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-282012
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Spectroscopy
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<img src="navBarBottomLeftMargin.jpg" height="26" width="8">
<font><a href="page7.cml"><img border="0" height="26" src="prev.jpg" width="60">
</a><img border="0" height="26" src="next.jpg" width="59">
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