Random radioactive stuff

Question 1

• Alpha decay: . Ejection of a helium nucleus at relatively low speed.

Answer 1

Weakest form of radiation. Can be stopped by a sheet of paper. It is essentially a relatively low speed helium nucleus.

Question 2

• Beta decay: . Ejection of a high-speed electron.

Answer 2

More energy than an alpha particle. Can be stopped by aluminum foil. It is a high-speed electron.

Question 3

• Gamma decay: . Release of high-energy electromagnetic wave.

Answer 3

Strongest form of radiation. It is a high-energy electromagnetic wave. Can be stopped by a thick layer of lead or concrete.