Answer:
Increases
Step-by-step explanation:
- When you move across the period from left to right, the attraction between the electron and the proton in the nucleus increases
- An increase in the attraction between the electron and the proton in the nucleus is due to the increased nuclear charge.
- Across the period from left to right, an increase in the number of protons results in an increased nuclear charge.
- An increase in nuclear charge, in turn, causes an increase in the attraction between the nucleus and the electrons.