We did a radioactive decay and half life lab with m&ms and I do not understand these conclusion questions:
1. how many half lives would it take for 500 nuclei to decay to 6.25% of the original number of nuclei?
My ans: 3125?- do not think that's right!
2. Is there any way to predict when a specific piece of candy will land marked side up or"decayed"? If you could follow the fate of an individual atom in a sample of radioactive material, could you predict when it would decay? Explain.
My ans: Yes you can if you are able to follow the fate of an individual atom.I do not know how to explain...
3. Strontium-90 has a half life of 28.8 years. If you start with a 10 gram sample of strontium-90, how much will be left after 115.2 years?
0 answers