which is most likely true about electronegativity? it tends to be the same across a period. it tends to be…

Brief Explanations:

Electronegativity is the ability of an atom to attract electrons in a chemical bond. Across a period (from left - to - right), the number of protons increases and the atomic radius decreases, so the attraction for electrons increases. Down a group, the atomic radius increases and the electronegativity decreases.

Answer:

It tends to increase across a period.