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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 sharing of electrons in a bond is what determines the type of bond. Because electronegativity determines this sharing, it is the difference in electronegativity that allows us to classify a bond of one type or another.</font></td>
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<font size="4" face="Verdana, Arial, Helvetica, sans-serif">A scale has
been added to calculate the difference in the electronegativity 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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<body marginwidth="5" bgcolor="rgb(230, 230, 230)" marginheight="5">
<strong><font size="4" face="Arial, Helvetica, sans-serif">If you want to
make a </font><font color="maroon" size="4" face="Arial, Helvetica, sans-serif">non-polar
covalent bond</font><font size="4" face="Arial, Helvetica, sans-serif">
the difference in electronegativities between the atoms should be:</font></strong>
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<body marginwidth="5" bgcolor="rgb(230, 230, 230)" marginheight="5">
<strong><font size="4" face="Arial, Helvetica, sans-serif">If you want to
make an </font><font color="maroon" size="4" face="Arial, Helvetica, sans-serif">ionic
bond</font><font size="4" face="Arial, Helvetica, sans-serif"> the
difference in electronegativities between the atoms should be:</font></strong>
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<body marginwidth="5" bgcolor="rgb(230, 230, 230)" marginheight="5">
<strong><font size="4" face="Arial, Helvetica, sans-serif">If you want to
make a </font><font color="maroon" size="4" face="Arial, Helvetica, sans-serif">polar
covalent bond</font><font size="4" face="Arial, Helvetica, sans-serif">
the difference in electronegativities between the atoms should be:</font></strong>
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<strong><font size="4" face="Arial, Helvetica, sans-serif">What is the
numeric difference in electronegativity that divides non-polar from polar?</font></strong>
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<strong><font size="4" face="Arial, Helvetica, sans-serif">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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