Assignment Booklet 11 Value 30 Lesson 1: The Nucleus and Radioactive Decay 1 1 . Provide the equation when U-238 emits an alpha particle. If you wish, you may use the Nuclear Decay Gizmo (Unit D) to confirm your answer. When in the Gizmo, select "Show Equation"; then, press the play button . 2. Regarding your response to question 1 above, answer the following three questions. 1 a. Is the atomic mass (number of nucleons) conserved on both sides of the equation? How can you tell? 1 b. Is the atomic number (number of protons or positive charges) conserved on both sides of the equation? How can you tell? c. What is the common name of an alpha particle