What are beta rays?

Answer 1

Beta radiation is the name of the particle released in a type of nuclear decay called (naturally) beta decay. The radiation, the particle, is either a high energy electron or a high energy anti-electron or positron. These little guys come out of the decay event like a bullet from a gun, but don't have a lot of penetrating power. They can be stopped by a sheet of aluminum foil.

Hit the links below for further information, particularly the one on what beta decay is. As an aside, there is an anti-neutrino or neutrino (respectively) released in the decay events also, but these little dudes don't interact strongly with other particles and just pass right through.

Answer 2

Yes. I found this: "Beta particles are just electrons from the nucleus, the term "beta particle" being an historical term used in the early description of radioactivity. The high energy electrons have greater range of penetration than alpha particles, but still much less than gamma rays. The radiation hazard from betas is greatest if they are ingested. " Here: http://hyperphysics.phy-astr.gsu.edu/hbase/nuclear/beta.html

Answer 3

beta rays are radio active rays emitted by a radioactive substance

Answer 4

negative beta, electrons. positive beta, positrons.

Answer 5

Gamma rays are photons, particles of light. Whereas, Beta particles are high speed electrons. Gamma rays have much more energy and are therefore more penetrating than Beta particles.

Answer 6

Beta waves are normal in sleep, particularly for infants and young children.