Radioactive decay occurs when an unstable (radioactive) isotope transforms to a more stable isotope, generally by emitting a subatomic particle such as an alpha or beta particle.

Radioactive Decay Law Describes the change of activity with time exponential decay with time! At half life 50% of the activity is gone! ( t ) = A ⋅ e − λ⋅

Decay chains of radioactive atoms have been studied extensively. Scientists know exactly how many decays are required for each radioactive atom to become stable.

Transportation of radioactive materials is well regulated and very safe. Consequently, your chances of responding to such incidents are minimal. However, you need to be prepared for all types of …

How Exposure or Contamination Can Happen Radioactive materials could be released into the environment in the following ways:

Some radioactive materials such as uranium, once entering the human body, may also cause metallic toxicity, etc., in addition to causing internal exposure. (Related to p.21 of Vol. 1, “Penetrating Power …

Energy liberated during radioactive decay is now considered to be one of the main sources of heat within the Earth. The driving force for li-thospheric plate movements, mountain orogene-sis, and …