Question
Nucleophilicity and electronegativity follow ____ trends.
Answer
Nucleophilicity and electronegativity follow opposite trends.
Note: Nucleophilicity is the tendency of an atom to share its electrons, while electronegativity is the tendency to hold on to electrons. Electronegativity and nucleophilicity follow opposite trends, so increased nucleophilicity is associated with decreased electronegativity. Across a row in the periodic table, nucleophilicity increases RH2C- > RHN- > RO-.
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