The atomic radius will decrease as you move across the period
This is the distance between the last shell of the element to the center of the nucleus. As you move across the period, atomic radius decreases and increase down the group. This primarily because of increase in the effective nuclear charge while the electron shielding from the nucleus remains constant. This will always cause a stronger force of attraction and will lead to a contraction in size.
Atomic radius are generally smaller for metals compared to non-metals in the same period. As you go down the table, the atomic radius increases because of increase in the number of shielding electrons and the force of attraction here is lower compared to when you move across that same period.
Learn more on atomic radius:
https://brainly.com/question/15255548
https://brainly.com/question/13879092
