Radioactive Decay Crossword Puzzle

QUESTIONS LIST:

• radioactivity : the process in which some substances spontaneously emit radiation
• radiation : the rays and particles emitted by radioactive material
• radioactive decay : the process by which unstable nuclei lose energy by emitting radiation
• nuclear radiation : a reaction that involves a change in an atom's nucleus
• element : a pure substance that cannot be broken down into simpler substances by physical or chemical means
• alpha radiation : radiation that is deflected toward a negatively charged plate when radiation from a radioactive source is directed toward two electrically charged plates
• alpha particle : contains two protons and two neutrons, having a charge of +2
• nuclear equation : shows the atomic numbers and mass numbers of particles involved in radioactive decay
• beta radiation : radiation that is deflected towards a positively charged plate when radiation from a radioactive source is directed toward two electrically charged plates
• beta particle : an electron with a -1 charge
• gamma ray : high energy radiation that has no mass or charge