Brazilian-Argentine Agency for Accounting and Control of Nuclear
Materials. Rain (or snow) that contains an abnormal amount of
acid resulting from high atmospheric concentrations of carbon,
sulfur, or nitrogen oxides. Acid rain is often attributed to
burning of fossil fuels. Element with atomic number of 90
through 103; includes uranium and plutonium. Form of scientific
investigation where the chemical makeup of different materials
is figured out by bombarding them with neutrons or other types
of radiation. This produces radioactive atoms that give off
specific types of radiation, and this radiation reveals what
types of elements (qualitative) and what quantity are in the
samples. Atomic Energy Society of Japan. Positively charged
particle emitted in radioactive decay of unstable atoms. An
alpha is made up of two neutrons and two protons (a helium atom
nucleus) and is thus heavier and slower moving than other decay
emissions. Alpha particles can be stopped quite easily. They
cannot penetrate a piece of paper