Mold in your home can cause symptoms such as. 1  Asthma. 2  Sore eyes. 3  Itchy skin.  Runny or blocked 1  nose. Sneezing. 2  Coughing. Sore throat.
Radioactive decay, also known as nuclear decay or radioactivity, is the process by which a nucleus of an unstable atom loses energy by emitting radiation.A material that spontaneously emits such radiation â which includes alpha particles, beta particles, gamma rays and conversion electrons â is considered radioactive.adioactive decay is a stochastic (i.e. random) process at the level of single atoms, in that, according to quantum theory, it is impossible to predict when a particular atom will decay.
More than 99.999% of the atomic nuclei in objects around you are stable, that is, they do not decay. Some nuclei, however, are unstable. The process of spontaneous change, and the associated emission of energetic particles, is called radioactivity, or radioactive decay.The three types of radiation that we will study are: 1  alpha rays which are two protons and two neutrons bound tightly to each other (a helium-4 nucleus),adioactive Decay and Half-life. The radioactive decay law is. I(t) = Io 2 where Io is the intensity of the radiation at time zero, I(t) is the intensity of the radiation after time t, and TÂ½ is the half-life of the sample.