Identify the following diagnostic procedure that gives the lowest dose of radiation. O computed tomography - head O barium enema x-ray thalliium heart scan chest x-ray dental x-ray-panoramic

= 1 = 2 = 3 = 4 = 5 = 6 = 7 = 8 = 9 -10 -11 Rewrite the following radioactive decay series. α བང 231 β 4. Pa 227 He 91 2 89 Ac α →> 18 Ar

Some workers responding to the 1986 explosion at the Chernobyl nuclear plant absorbed 403 J of radiation primarily from γ rays.  What is the effective dose (in Sv) absorbed by a 65.0 kg worker?

Search for Life Transfer Task 1 - Poisoned Shopworkers Back in 1920, one of the most sought-after jobs on the East Coast was a dial painter at a watch factory. These workers were all female, and they absolutely loved their jobs. These girls were instructed to paint the number on a watch with paint laced with an element called radium. Years later, many of these workers developed many medical problems with their bones. Some girls lost their jaw bones, and others’ bones broke when they walked across a room. Several doctors thought that phosphorus poisoned the girls’ bones. Their companies insisted that radium was not damaging their bones in order to avoid a lawsuit.  Answer the questions below to answer the big questions: Was it the radium or the phosphorus that poisoned the girls’ bones?  Were the factories responsible for the girls’ sicknesses?

Which of the following units is most commonly associated with the measurement of tissue damage caused by radiation? Gray Curie Bequerel Sievert Joule

13. What is the missing particle? 2Am + He → 2¿n + B. 2Bk 243 95 A. 2Bk 244 97 245 97 C. 2Bk 246 97 D. 257BK

Part B Balance the decay equations Determine the particle that balances the equation.