Question

Put these different types of radiation in order from MOST to LEAST penetrating.

Answer 1

Answer:

Alpha

• These are fast moving helium atoms.
• They have high energy, typically in the MeV range
• Due to their large mass, they are stopped by just a few inches of air, or a piece of paper.  

Beta

• These are fast moving electrons.
• They typically have energies in the range of a few hundred keV to several MeV.

Gamma

• These are photons, just like light, except of much higher energy,
• They are typically from several keV to several MeV.
• X-Rays and gamma rays are really the same thing, the difference is how they were produced.

Answer 2

Answer: NO, IT'S GAMMA, BETA, THEN ALPHA

Explanation: