In a nuclear fusion chain reaction, three of these entities combine to form an atom of carbon in a process that forms a beryllium intermediate.
Ionization smoke detectors rely on the ability of these entities to ionize oxygen and nitrogen. In a nuclear fusion chain reaction, three of these entities combine to form an atom of carbon in a process that forms a beryllium intermediate. Ernest Rutherford fired a beam of this particle to develop the idea of an extremely small, dense nucleus in his gold foil experiment. Because of this particle's composition, it is sometimes referred to as a helium nucleus, and uranium decays by emitting this particle. For 10 points, name this particle which contains two protons and two neutrons.
Ionization smoke detectors rely on the ability of these entities to ionize oxygen and nitrogen.
{alpha particle} (accept helium nucleus before mentioned)