Write a hypothesis about how the number of half-lives affects the number of radioactive atoms. Use the "if . . . then . . . because . . ." format and be sure to answer the lesson question: "How does the number of radioactive atoms change over time?"

Answer:

Write a hypothesis about how the number of halflives affects the number of radioactive atoms. Use the if . . . then . . . because . . . format and be sure to answer the lesson question: How does the number of radioactive atoms change over time?