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Electronegativity

Electronegativity Chemistry Vocab and Questions

QuestionAnswer
Electronegativity The tendency of an element to attract elements Increases going across Period Decreases going down Group
Calculating Electronegativity Difference The electronegativity difference between two bonding elements determines the bond type. Find the two elements and their corresponding electronegativity values. Subtract one value from the other. Take the absolute value.
Ionic Bonds The greatest difference in electronegativity is found between metals and nonmetals metal transfers an electron to a nonmetal Electronegativity difference must be greater than or equal to 1.7
Ionic Compound Lewis Structures When drawing Lewis Structures for Ionic Compounds… Show both the transfer of electron(s) AND the resulting ions with their charge
Polar Covalent Bonds 0.4 < E. Diff. < 1.7 Unequal sharing of electrons - The more electronegative element pulls the electrons in closer Creates a partial charge on each atom - Represented by a δ+ or δ- and an arrow showing direction of electron movement (dipoles)
Nonpolar Covalent Bonds less than or equal to 0.4 Equal sharing of electrons - Both elements have essentially the same electronegativity, so electrons are not drawn any more toward one atom than the other - No charges on atoms
Created by: Sabrina_thecool
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