2. Hosted By Tristan Holmgren and Adam Belmnahia

3. 100 200 400 300 400 Radiation Transmutations Half-Life Uses and dangers of radio isotopes 300 200 400 200 100

4. Row 1, Col 1 As a nucleus emits this particle, Its atomic number decreases by 2 and its mass number decreases By 4. What is an Alpha particle?

5. 1,2 This is when an element changes Naturally to another element. What is a natural transmutation?

6. 1,3 These substances decay at a Constant rate that is not dependent On temperature, pressure, or Concentration. What are radioactive substances?

7. 1,4 These isotopes have many applications in Industry, medicine, and Research. What are Radioisotopes?

8. 2,1 When a nucleus emits this Particle, the charge on the Nucleus increases by 1 and the Atomic number increases by 1. What is a Beta particle?

9. 2,2 This is a reaction that involves The combining of light nuclei To produce a heavier nucleus. What is Fusion Reaction?

10. 2,3 The time it takes for half of the Atoms in a given sample of an Atom to decay. What is a half-life?

11. 2,4 Any radioisotope used to follow the path of a material in a System. What is a Tracer?

12. 3,1 When a nucleus emits this Particle, which has a charge of +1, the charge on the nucleus Decreases by 1 and thus the Atomic number decreases by 1. What is a Positron particle?

13. 3,2 As a result of this process, The nucleus produced by the Capture of a neutron is unstable And it quickly splits. What is Fission?

14. 3,3 This device can be used to record individual decay events. What is a Geiger Counter?

15. 3,4 Certain types are quickly Eliminated from the body and Have short half-lives that are Important as tracers in Medical diagnosis. What are Radioisotopes?

16. 4,1 Almost all nuclear decay also Releases some energy in the form Of these rays. What are Gamma rays?

17. 4,2 The most common example of This process occurs in the sun Where hydrogen nuclei react in A series to produce helium Nuclei. What is Fusion?

18. 4,3 The initial amount of a Substance can be determined By this, along with the amount Remaining and the time passed. What is a half-life?

19. 4,4 This incident in 1986 caused a Nuclear meltdown due to unstable Radioisotopes. What is the accident at Chernobyl?