<P> In radiation protection , radiation is often separated into two categories , ionizing and non-ionizing , to denote the level of danger posed to humans . Ionization is the process of removing electrons from atoms , leaving two electrically charged particles ( an electron and a positively charged ion ) behind . The negatively charged electrons and positively charged ions created by ionizing radiation may cause damage in living tissue . Basically , a particle is ionizing if its energy is higher than the ionization energy of a typical substance , i.e. , a few eV , and interacts with electrons significantly . </P>
<P> In radiation protection , radiation is often separated into two categories , ionizing and non-ionizing , to denote the level of danger posed to humans . Ionization is the process of removing electrons from atoms , leaving two electrically charged particles ( an electron and a positively charged ion ) behind . The negatively charged electrons and positively charged ions created by ionizing radiation may cause damage in living tissue . Basically , a particle is ionizing if its energy is higher than the ionization energy of a typical substance , i.e. , a few eV , and interacts with electrons significantly . </P>
what names are given to the two main types of particle radiation found on earth
what names are given to the two main types of particle radiation found on earth
ionizing non-ionizing
ionizing non-ionizing