Which of these describes a tendency for atomic radii as displayed on the periodic chart?

How do you think the size of an atom will affect its ability to attract additional electrons

As you move across the periodic table atoms tend to get smaller because, ______________.

As you travel down a group atomic radius (decreases/increases). Why

Which of these describes atomic radii as one moves from top to bottom within a group

Of the following, which gives the correct order for atomic radius for Mg, Na, P, Si, and Ar?

What trend in atomic radius occurs across the periodic table? what causes this trend?

Choose the larger atom in each pair. a. P or O b. Si or Sn c. S or Sb d. B or N

Choose the larger atom in each pair. a. I or In b. Sb or P c. Te or Br d. S or Ge