It is this variation in the number of neutrons that gives the different isotopes their radiological properties. Isotopes differ in the types of radiation emitted during the nuclear decay process, decay rate, interactions with nuclear particles, and ability to undergo nuclear fission. 235 U. The depleted fraction is then chemically transformed into a uranium metal derby. This is the first stage at which the depleted material is in the state necessary for further processing by ammunition manufacturers. All isotopes of uranium are essentially identical chemically and, since depleted and natural uranium are just different mixtures of the same three isotopes, they have the same chemical properties.
All isotopes of uranium are radioactive.
Alpha and beta radiations are actually discrete particles, whereas gamma radiation is essentially a photon of energy similar to an x-ray but from the nucleus. Most alpha particles are not energetic enough to penetrate skin and are not considered to be an external hazard. Alpha particles, however, can be a health hazard if inhaled or ingested in sufficient quantities. Beta particles are able to penetrate skin a few millimeters and can pose both an internal and external health risk. Since a gamma ray is a photon of energy with no mass and no charge, it is extremely penetrating, and can be both an internal and external health hazard.