This question is a bit ambiguous! To answer it, we need to know what you're referring to by "moves."

Here's why:

* Alpha, beta, and gamma are types of radiation: They are all forms of electromagnetic radiation.

* Alpha particles are large and heavy, consisting of two protons and two neutrons. They have the shortest range in air, meaning they lose energy quickly and can be stopped by a sheet of paper.

* Beta particles are much lighter, consisting of electrons or positrons. They have a longer range than alpha particles, but can still be stopped by a few millimeters of aluminum.

* Gamma rays are the most energetic form of radiation and have the longest range in air. It takes thick materials like lead or concrete to stop them.

* "Moves" can refer to how far something travels: If you mean the distance that these types of radiation travel through the air, then the answer is:

* Alpha: Shortest distance

* Beta: Medium distance

* Gamma: Longest distance

Please clarify your question if you meant something else!