(pages 291 - 307)
1. The intensity of radiation, measured on a geiger counter, is measured in what units?
2. The constant level of natural radioactivity in our environment is called what?
3. An alpha particle is how many times heavier (more massive) than a beta particle?
4. How does the alpha particle's mass related to the damage it can cause?
5. Which particles are more damaging to human tissue? Pick one:
(a) alpha particles (b) beta particles
6. Give the nuclear equation for the production of a beta particle in a nucleua (pg 296).
7. How does the emission of a gamma ray affect the mass and the electric charge of a nucleus?
8. Which isotope is the final product in the U-238 decay series?
9. When an ionizing radiation passes through a cloud chamber, what is produced that we can see? (pg 303)
10. Give the nuclear equation for the transmutation reaction that Rutherford caused in 1919. (pg 304)
11. That O-17 atom Rutherford prodiced... was it radioactive?
12. In 1934 the first radioactive artificial isotope was created; give the equation for its production. (Pg 305)
Comments? Questions??
Robert Clark