Multiple Choice: Read and answer the following questions by choosing the letter of the best answer. Use separate sheet for your answers. 1. In the modern Periodic Table, elements are arranged A. in alphabetical order B. according to atomic mass C. according to atomic number D. according to the number of neutrons 2. Which best describes oxygen? A. Oxygen is a halogen. C. Oxygen is a noble gas. B. Oxygen is a nonmetal. D. Oxygen is a rare earth element 3. In the Periodic Table, the vertical columns that extend down the Periodic Table are called A classes B groups C. line D. periods 4. The elements in group 1A of the periodic table are called A. alkali metals B. alkaline earth C. halogens D. rare earth 5. Which of the following elements belong to the group that includes the most active metals? A. Aluminum B. Iron C. Mercury D. Sodium 6. Sodium is in the same group or family as A Calcium B. Helium C. Lithium D. Thorium 7. How many periods are there in the periodic table? B. 7
