1. Rank the following elements by increasing (smallest to largest) electronegativity: sulfur,
oxygen, neon, aluminum.
2. Is Ca2+ larger or smaller than Ca? Why is this?
3. Why do elements in the same family generally have similar properties?
4. Why does fluorine have a higher ionization energy than iodine?
5. What is the difference between electron affinity and ionization energy?
6. Rank the following elements by increasing (smallest to largest) atomic radius: carbon,
aluminum, oxygen, potassium.
7. Is Br1- larger or smaller than Br? Why is this?
8. Rank the following elements from smallest to largest: sodium, phosphorus, silicon,
nitrogen, boron, barium, selenium.
a. Atomic radius
b. Ionization energy
c. Electronegativity
d. Electron Affinity