radiation and half life

In order of most to least penetrating radiation we have

• Alpha , Beta,  Gamma
• Beta , Gamma , Alpha
• Gamma, Beta, Alpha
• Gamma, Alpha, Beta

Which type of radiation is the most ionising?

• alpha
• beta
• gamma

Which type of radiation is the least ionising?

• alpha
• beta
• gamma

What type of radiation can be stopped by a piece of paper?

• Alpha radiation
• Beta radiation
• Gamma radiation

What type of radiation can be stopped by a approximately 5 cm of air?

• Alpha radiation
• Beta radiation
• gamma radiation

What type of radiation can be stopped by a approximately 1 m of air?

• Alpha radiation
• Beta radiation
• gamma radiation

What type of radiation can be stopped by a 5 mm piece of aluminium?

• Alpha radiation
• Beta radiation
• gamma radiation

What type of radiation can be stopped by a thick lead sheet?

• Alpha radiation
• Beta radiation
• gamma radiation

_______________ is the process by which unstable atoms emit radiation until they become stable.

• Radiation
• Chemical Reaction
• Radioactive Decay
• Isotopes

Name the most penetrating type of radiation.

• alpha
• beta
• gamma
• lambda