Q.1.
Energy in the sun is produced as a result of nuclear ____ reactions.
Q.2.
The rate at which a radioactive element decays is its ____.
Q.3.
Which type(s) of radiation would be affected by a magnet?
Q.4.
Name the instrument used to detect radioactivity.
Q.5.
Neutrons released in a fission reaction can strike other nuclei and cause a
Q.6.
The half-life of strontium-isyears. How much strontium-will remain afteryears if the initial amount is 4.0 g?
Q.7.
Finish this equation20983Bi--> _______ + 20581Tl
Q.8.
The type of radioactive particle that can be stopped by a sheet of paper is the ____.
Q.9.
The most dangerous type of radiation is the ____.
Q.10.
When nuclei decay, massive amounts of __________ is released.