Radioactivity and Nuclear Reactions

Front

What is radioactivity?

Back

Radioactivity is the process by which unstable atomic nuclei lose energy by emitting radiation.

Front

What are the three main types of radiation?

Back

Alpha particles, beta particles, and gamma rays.

Front

What is nuclear fission?

Back

Nuclear fission is the process in which a large atomic nucleus splits into smaller nuclei, releasing a significant amount of energy.

Front

What is nuclear fusion?

Back

Nuclear fusion is the process where two light atomic nuclei combine to form a heavier nucleus, releasing energy.

Front

How do nuclear power plants generate electricity?

Back

Nuclear power plants generate electricity by using the heat produced from nuclear fission to convert water into steam, which drives turbines.

Front

What is a chain reaction in nuclear fission?

Back

A chain reaction occurs when neutrons released from fission events cause additional fission events in nearby nuclei.

Front

What role do neutrons play in nuclear fission?

Back

Neutrons are essential in nuclear fission as they initiate the fission process and sustain the chain reaction.

Front

What is the difference between nuclear fission and nuclear fusion?

Back

Nuclear fission involves splitting a heavy nucleus, while nuclear fusion involves combining light nuclei.

Front

What is the primary fuel used in nuclear reactors?

Back

Uranium-235 is the primary fuel used in most nuclear reactors.

Front

What is the significance of the critical mass in nuclear fission?

Back

Critical mass is the minimum amount of fissile material needed to maintain a chain reaction.