What does the presence of a polar covalent bond show about the electronegativities of its two atoms?A.The electronegativities of the two atoms are the same.B.The difference in electronegativities is greater than 1.7.C.The effects of electronegativity differences are canceled out.D.The electronegativities of the two atoms are not equal.
Question
What does the presence of a polar covalent bond show about the electronegativities of its two atoms?A.The electronegativities of the two atoms are the same.B.The difference in electronegativities is greater than 1.7.C.The effects of electronegativity differences are canceled out.D.The electronegativities of the two atoms are not equal.
Solution
The presence of a polar covalent bond shows that the electronegativities of the two atoms are not equal (D). This is because a polar covalent bond forms when there is a difference in electronegativity between the two bonding atoms. The atom with the higher electronegativity will pull the shared electrons closer to itself, creating a partial negative charge, while the other atom will have a partial positive charge. This difference in charge creates the polarity in the bond.
Similar Questions
How does electronegativity affect the polarity of the bond between two atoms?A.The more electronegative atom will form the positive pole of a polar bond.B.The more electronegative atom will form a nonpolar end of the bond.C.Electronegativity differences between the atoms will cancel out bond polarity.D.The more electronegative atom will make its end of the bond more negative.SUBMITarrow_backPREVIOUS
Which of the following best describes a polar covalent bond?Multiple choice question.Brief fluctuations in electron density create oppositely charged regions in two atoms that then attract one anotherElectrons are shared unequally between two atoms.Electrons are shared equally between two atoms.Electrons are transferred from one atom to another to generate oppositely charged ions that are attracted to one another.
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