1. What ions have a larger radius than their parent atom?
2. What is the effect on atomic properties of increasing nuclear charge?
3. What are the following trends in the Periodic Table?
a) Changes in the atomic diameter across a period and down a group.
b) Changes in the ionic diameter of cations and anions.
c) Changes in ionization energy
d) Changes in electron affinity
e) Changes in metallic behavior
f) Changes in acidity across a period
4. Which member of each pair is more metallic?
a) I or O
b) Be or Ba
c) Se or Ge
d) S or Ca