How does the size of the atom (atomic size) change as you move from the LEFT side to RIGHT side of the Periodic Table?
A)size stays the same
B)size decreases
C)size increase

B

Explanation:

As you move from left to right, the number of protons increases. More protons means a bigger positive charge to pull in the electrons from the shells. This would then decrease the size of the atom.

Thus, the answer is B, the size decreases.

Hope this helps!