Radiation Flashcards
When does radioactive decay occur?
When the nucleus of an isotope is unstable
Which of these is not a method for safely handling radioactive materials?
Picking it up using your hands
Which type of radiation is the least ionising?
Gamma
What type of radiation can be stopped by a 5 mm piece of aluminium?
Beta radiation
Name the instrument used to detect radioactivity.
geiger counter
In order of most to least penetrating radiation we have
Gamma, Beta, Alpha
Which type of radiation is the most ionising?
Alpha
What type of radiation can be stopped by a piece of paper?
Alpha radiation
What type of radiation can be stopped by a approximately 5 cm of air?
Alpha radiation
What type of radiation can be stopped by a approximately 1 m of air?
Beta radiation
What type of radiation can be stopped by a thick lead sheet?
Gamma radiation
Name the most penetrating type of radiation.
Gamma
Which is the process by which unstable atoms emit radiation until they become stable.
Radioactive Decay
