Question

1. Why is uranium-235 the only isotope of uranium that can be used as fuel for a nuclear weapon?

2. A uranium 235 particle is struck by a neutron creating a fission event. The uranium splits into the following atoms and particles: A Barium 141 atom, a Krypton 92 atom, and 3 neutrons. Use this information and your knowledge of electrostatics, fundamental forces, and the conservation of energy to explain (conceptually) how this produces energy.

3. After a fission event occurs the Barium 141 atom goes through several radioactive decays until it becomes Praseodymium 141, which is stable. The most common form of decay in this cycle is the emission of a high energy electron (a beta particle). Which of the four fundamental forces is responsible for this?  

Answer 1