What particle is found in the nucleus of an atom?

Which force holds the nucleus together?

Who discovered radioactivity?

Which type of radiation is the most penetrating?

What is the half-life of a radioactive substance?

Which particle has a negative charge and orbits the nucleus?

Which nuclear reaction splits a heavy nucleus into two lighter nuclei?

Which nuclear reaction combines light nuclei to form a heavier nucleus?

Which element is commonly used as fuel in nuclear reactors?

Which nuclear particle has no electric charge?