Answer:
increases
Explanation:
Across the period, the electronegativity increases as the number of electrons increases which causes an increase in the effective nuclear charge. As a result, the size decreases and electronegativity increases.
The higher the electronegativity of A in the bond H-A , the more polar is the bond and the more easily it will dissociate in water to furnish hydrogen ions and thus will have more acidic strength.
