Write nuclear equations that describe the following processes. 9. Uranium-235 undergoes an alpha decay to produce thorium-231.
10. Lanthanum-144 becomes cerium-144 when it undergoes a beta decay.
11. Neptunium-233 is formed when americium-237 undergoes a nuclear decay process.
12. When protactinium-229 goes through two alpha decays, francium-221 is formed.
13. Uranium-238 undergoes an alpha decay and produces two gamma rays.
14. The neon-22 nucleus is formed when an element undergoes a beta decay.
15. Samarium-146 is produced when an element undergoes an alpha decay.
16. The beta decay of dysprosium-165 creates a new element.
Answer the following questions. Include the mass number when naming isotopes.
17. What atom produces scandium-47 when it goes through a beta decay?
18. What new element is formed when curium-244 emits two alpha particles and three gamma rays?
WS4-4Nuclear Equations
John Erickson, 2005