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Molecular Geometry
233215251
Electrons Are Repulsive
(to each other)
page 2 of 9
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<font face="Verdana, Arial, Helvetica, sans-serif" size="4">Electron pairs
stay as close to the nucleus as they can, while keeping as much distance
from each other as possible. </font>
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org.concord.modeler.text.LineIcon750.03010515<html><body align="center"><strong><font size="5" face="Verdana, Arial, Helvetica, sans-serif" color="rgb(051, 051, 051)"> Attractive and Repulsive Forces on Electrons</font></strong></body></html>-458704
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<font face="Verdana, Arial, Helvetica, sans-serif" size="4">Electrons
repel each other intensely, but they're also fiercely attracted to the
positively charged nucleus. </font>
<p>
<font face="Verdana, Arial, Helvetica, sans-serif" size="4">Electrons
are constantly on the move, so rather than pinpointing where an electron
is, its more useful to think of <b>regions of electron density</b> - the
region where an electron is most likely to be found. </font>
</p>
<p>
<font face="Verdana, Arial, Helvetica, sans-serif" size="4"><b>Use the
buttons below the model to view attractive and repulsive forces that
four regions of electron density experience. </b></font>
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repulsive forces
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org.concord.modeler.text.LineIcon750.03010515<html><body align="center"><strong><font size="5" face="Verdana, Arial, Helvetica, sans-serif" color="rgb(051, 051, 051)">Balancing Attractive and Repulsive Forces</font></strong></body></html>-458704
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<font face="Verdana, Arial, Helvetica, sans-serif" size="4"><b>Keep Your
Distance </b></font><br><font face="Verdana, Arial, Helvetica, sans-serif" size="4">Below
are atoms with 2, 3 and 4 regions of electron density around them. </font>
<ol>
<li>
<font face="Verdana, Arial, Helvetica, sans-serif" size="4">Rotate
each atom and its electron pairs by clicking and dragging on the
image. </font>
</li>
<li>
<font face="Verdana, Arial, Helvetica, sans-serif" size="4">Click
"Run" for each model to allow the electrons to move freely. </font>
</li>
<li>
<font face="Verdana, Arial, Helvetica, sans-serif" size="4">Make sure
to rotate the model in 3D after running it. </font>
</li>
<li>
<font face="Verdana, Arial, Helvetica, sans-serif" size="4">Answer the
questions below.</font>
</li>
</ol>
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How do the final positions of the electrons differ from their starting positions?
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Explain why the electron pairs move to their new positions.
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<font face="Arial, Helvetica, sans-serif" size="4"><strong>If electrons
are so repulsive, what keeps them from moving away from the atom
altogether? Choose the best answer.</strong></font>
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they are stuck in their orbitals
they aren't negatively charged enough
they are attracted to the nucleus of the atom
they are attracted to other electrons
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