What are 3 types of nuclear radiation?
What is an alpha, beta, and a gamma?
What type of reaction has two smaller nuclei combining to form a larger nucleus?
What is fusion?
Which type of radiation is just energy and NOT a particle?
What is a gamma ray?
If a radioactive sample goes through 3 half-lives, what fraction of the sample will remain?
What is 1/8 ?
Which nuclear reaction involves the splitting of a heavy nucleus into two or more lighter nuclei.
What is fission?
Balance the following reaction: _____ --> 3216 S + 0 -1 B
3215 P
Thorium-234 has a half-life of 24 days, started with 100 g how much is left after 48 days?
What is 25 grams
Which occurs in the sun
What is fusion
Balance the following reaction: 252 98 Cf --> beta particle + ________ .
What is 252 99 Es
Arsenic-81 has a very short half-life of 33 seconds. How long will it take a 100g sample of As-81 to decay to 6.25g?
What is 132 seconds?
OR 2 minutes and 12 seconds.
What are the downsides of using fission as an energy source?
nuclear waste; danger of out-of-control chain reaction
Explain what causes a nuclei to be unstable. What will the nucleus do to become stable in both cases?
Too many neutrons/protons.
It releases radiation (particles /energy)
Balance the following reaction: 24294 Pu --> alpha particle + _____
238 92 U
Carbon-14 has a half-life of 5,730 years. If a sample contains 70 mg originally, how much is left after 17,190 years?
What is 8.75 grams