Alex and Casey are analyzing a sample of asteroid material from Bennu, brought back by the OSIRIS-REx mission. They are using their knowledge of radioactive decay to identify the elements in the sample and determine its age. 1. Alex and Casey discovered a new radioactive element in the Bennu sample. How would they determine the type of radiation it emits (alpha, beta, or gamma)? 2. Alex suggests using alpha decay to identify the elements in the Bennu sample. a. How would you explain alpha decay to Casey and why it might be useful? b. During their research, Casey finds that the kinetic energy of an emitted alpha particle is 5 MeV. If the mass of the alpha particle is 4 amu, what is its velocity (using 1 amu = 1.66 10 kg and 1 MeV = 1.6 10 J)? 3. While studying the substructure of the nucleus, Alex and Casey identify an unusual nuclear configuration. How can they determine if the configuration is stable or prone to decay