HELP I WILL MARK YOU AS THE BRAINLIEST ANSWER The atomic radii of elements on the periodic table generally from left to right and from top to bottom.
A.
increase; decrease
B.
decrease; increase
C.
stay the same; increase
D.
increase; increase

Hey there! Here is the

B.) decrease; increase

Here's why:

As you move from left to right across a period on the periodic table the size of an atom will decrease. As you move from top to bottom down a group on the periodic table the size of an atom will increase.

I really hope this answer helps you out! :)

b. accuracy of the data matters alot more than its number of digits, organization or amount of detail. quantitative observation is more accepted than the qualitative observation.