Polarity Flashcards

1
Q

how does electronegativity influence polarity

A

atoms of different elements are more/less electronegative, resulting in an uneven distribution of charge known as polarity, more electronegative atoms mean the shared electrons are mostly around that atom

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2
Q

how is partial negative charge represented

A

with the greek letter delta δ-

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3
Q

how is partial positive charge represented

A

with the greek letter delta δ+

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4
Q

electric dipole

A

the difference in the positive and negative charges in a polar molecule, which also have a permenant dipole

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5
Q

how do you dtermine the polarity of a polyatomic molecule

A

the polarity of the covalent bonds and the shape

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6
Q

what are the rules of polarity

A

symmetrical molecules are nonpolar, asymmetrical molecules are polar, nonpolar solutes dissolve nonpolar substance, polar solutess dissolve polar substances

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7
Q

electron density

A

the measure of the probability of an electron being present within a particular location of an atom

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8
Q

how to calculate polarity between different molecules

A

greater difference in electronegativity, greater polarity

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9
Q

if there is a 0 electrongativity difference…

A

electrons are shared equally, nonpolar covalent bond

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10
Q

if there is less than 1.7 difference in electrongativity difference…

A

electrons are attracted to more electronegative atom, polar covalent bond

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11
Q

if there is more than 1.7 difference in electrongativity difference…

A

electrons are transfered to more electrongeative atom, ionic bond

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