Final answer:
Electronegativity and acidity are inversely related. The stronger the electronegativity of an element in a binary acid, the stronger the acid. This trend is observed as increasing from left to right across a row of the periodic table.
Step-by-step explanation:
Electronegativity and acidity are inversely related. As the electronegativity of an element in a binary acid increases, the E-H bond becomes more polar, favoring dissociation to form E and H+. This results in a stronger acid. The trend in acid strength can be observed as increasing from left to right across a row of the periodic table.