Question

compared with the electronegativities of the elements on the left side of a period, the electronegativities of the elements on the right side of the same period tend to be _______. lower the same higher unpredictable

Explanation:

Electronegativity increases across a period from left - to - right. This is because as you move across a period, the number of protons in the nucleus increases, while the number of electron shells remains the same. This leads to a greater effective nuclear charge, which attracts bonding electrons more strongly.

Answer:

C. higher