Fission and Fusion

Front

What is fusion?

Back

Fusion is the process of joining two atomic nuclei to form a heavier nucleus, releasing energy in the process.

Front

What is fission?

Back

Fission is the splitting of a heavy atomic nucleus into two lighter nuclei, accompanied by the release of energy.

Front

What is the half-life of a radioactive isotope?

Back

The half-life is the time required for half of the radioactive atoms in a sample to decay.

Front

What is the half-life of iodine-131?

Back

The half-life of iodine-131 is 8 days.

Front

What percentage of the parent isotope remains after one half-life?

Back

50% of the parent isotope remains after one half-life.

Front

What process uses uranium to generate heat?

Back

Fission uses uranium rather than fossil fuels to generate heat.

Front

Which process occurs naturally in the center of stars like the Sun?

Back

Fusion occurs naturally in the center of stars like the Sun.

Front

What is a chain reaction in nuclear fission?

Back

A chain reaction is a series of reactions where the products of one reaction initiate further reactions.

Front

What is the primary fuel used in nuclear fission reactors?

Back

The primary fuel used in nuclear fission reactors is uranium.

Front

What is the main difference between fission and fusion?

Back

Fission involves splitting heavy nuclei, while fusion involves combining light nuclei.