Bellwork

12.10

• In two words, how is the periodic table organized?

12.11 - Look for the elements below in the periodic table on pp. 20-21. Write how each pair of elements are related.

1. calcium and barium
2. lithium and carbon
3. uranium and curium

12.12 - Classify each of the following elements as a metal, metalloid, or a nonmetal.

1. calcium
2. sulfur
3. tin
4. neon
5. nitrogen
6. carbon
7. mercury

12.13 - Use the periodic table to determine which would be more reactive.

• carbon or fluorine
• Sodium or Magnesium
• Iodine or Xenon

12.14 -

1. Would you expect strontium (Sr) to be more like potassium (K) or bromine (Br)?