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Chemical Bonds: Electronegativity Difference Determines the Bond Type
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<font face="Verdana, Arial, Helvetica, sans-serif" size="5" color="#FFFFFF"><strong>Chemical Bonds:</strong> Electronegativity Difference Determines the Bond Type</font>
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<td><img src="atomMainIdea.png" width="98" height="58"></td>
<td><font face="Verdana, Arial, Helvetica, sans-serif" size="4">The degree of electron sharing in a bond is what determines the type of bond. Because electronegativity determines this sharing, it is the difference in electronegativity of the bonded atoms that allows us to classify a bond as one type or another.</font></td>
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<font face="Verdana, Arial, Helvetica, sans-serif" size="4">A scale has
been added to calculate the difference in the electronegativities of the
two atoms, and to indicate with the green arrow what type of bond would
form. Experiment with making different kinds of bonds and then answer the
questions below. </font>
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<strong><font face="Arial, Helvetica, sans-serif" size="4">If you want to
make a </font><font face="Arial, Helvetica, sans-serif" size="4" color="maroon">non-polar
covalent bond,</font><font face="Arial, Helvetica, sans-serif" size="4">
the difference in electronegativities between the atoms should be:</font></strong>
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<body marginheight="5" bgcolor="rgb(230, 230, 230)" marginwidth="5">
<strong><font face="Arial, Helvetica, sans-serif" size="4">If you want to
make an </font><font face="Arial, Helvetica, sans-serif" size="4" color="maroon">ionic
bond,</font><font face="Arial, Helvetica, sans-serif" size="4"> the
difference in electronegativities between the atoms should be:</font></strong>
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<html>
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<body marginheight="5" bgcolor="rgb(230, 230, 230)" marginwidth="5">
<strong><font face="Arial, Helvetica, sans-serif" size="4">If you want to
make a </font><font face="Arial, Helvetica, sans-serif" size="4" color="maroon">polar
covalent bond,</font><font face="Arial, Helvetica, sans-serif" size="4">
the difference in electronegativities between the atoms should be:</font></strong>
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<strong><font face="Arial, Helvetica, sans-serif" size="4">What is the
numeric difference in electronegativity that divides non-polar from polar?</font></strong>
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<strong><font face="Arial, Helvetica, sans-serif" size="4">What is the
numeric difference in electronegativity that divides polar from ionic?</font></strong>
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Hint
Adjust the sliders so that the bond-type indicator (green
double-arrow) is halfway between two bond types. The
difference in electronegativity indicated there is the
dividing point between the two types of bonds.
Hint
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