3/21/20161 Human-caused decay is called induced transmutation. Human-caused decay is called induced transmutation. This is the process of striking nuclei with high velocity particles to form new elements or isotopes. This is the process of striking nuclei with high velocity particles to form new elements or isotopes. Chemistry

3/21/20162 Was first done by Earnest Rutherford in 1919; Was first done by Earnest Rutherford in 1919; Bombarded N-14 with alpha particles to form O-17 and H-1. Bombarded N-14 with alpha particles to form O-17 and H-1. Chemistry

3/21/20163 This nuclear bombardment creates a chain reaction as particles break apart (fission) or stick together (fusion). This nuclear bombardment creates a chain reaction as particles break apart (fission) or stick together (fusion). Chemistry

3/21/20164 Every element above Uranium (#92) has been created using some type of nuclear bombardment. Every element above Uranium (#92) has been created using some type of nuclear bombardment. These are called the transuranium elements. These are called the transuranium elements. Chemistry

3/21/20165 This is how most controlled (power plants) fission reactions occur as well as uncontrolled fission reactions (nuclear explosions). This is how most controlled (power plants) fission reactions occur as well as uncontrolled fission reactions (nuclear explosions). Chemistry

3/21/20166 The opposite of nuclear fission is nuclear fusion. This is the process where two nuclei combine to form one larger nucleus. This will only occur if there is enough energy (heat) and is common on the sun, for instance. The opposite of nuclear fission is nuclear fusion. This is the process where two nuclei combine to form one larger nucleus. This will only occur if there is enough energy (heat) and is common on the sun, for instance. Chemistry

3/21/20167 More energy is released in fusion, since mass is lost and converted to energy. More energy is released in fusion, since mass is lost and converted to energy. We have not yet been successful in using controlled nuclear fusion as a source of energy. We have not yet been successful in using controlled nuclear fusion as a source of energy. Chemistry

3/21/20168 Isotopes with mass numbers around 60 are most stable. Isotopes with mass numbers around 60 are most stable. Larger radioisotopes tend to go through fission to form smaller more stable isotopes. Larger radioisotopes tend to go through fission to form smaller more stable isotopes. Smaller radioisotopes tend to go through fusion to form larger more stable isotopes. Smaller radioisotopes tend to go through fusion to form larger more stable isotopes. Chemistry