1. Chapter 5 Test Review

2. Atomic radii 1. What is an atom’s atomic radii? 2. What happens to atomic radii across a period? Why? 3. What happens to atomic radii as you move down a group? Why? Practice problems, page 144

5. Ionization Energy 1. What is ionization energy? 2. What happens to ionization energy as you move across a period? Down a group? 3. What is meant by first, second, or third ionization energies? 4. Why does I.E. jump between certain steps? Practice Problems page 148.

7. Electron Affinity 1. What is electron affinity? 2. How does it change across a period? Down a group?

8. Atomic radii of ions 1. What are cations? Anions? 2. What happens to the atomic radii when an atomic becomes a cation? An anion?

9. Valence Electrons 1. What are valence electrons? 2. Be able to identify the number of valence electrons in each group of the periodic table. 3. Why are valence electrons important?

10. Electronegativity 1. What is electronegativity? 2. What happens to electronegativity as you go across a period? Down a group? 3. What is the most electronegative element? Why?

11. Math Tutor Practice problems page 157.