ACTIVITY REFERRED TO A RADIONUCLIDE
Definition
An <ACTIVITY REFERRED TO A RADIONUCLIDE> is a <Property> of a radionuclide, that is the activity per quantity of that radionuclide, being a variation dN of spontaneous number of nuclei N in a particular energy state, in a sample of a radionucide, due to spontaneous nuclear transitions from this state during an infinitesumal time interval, divided by its duration dt, thus: A = -dN/dt