An alpha-particle decay. In alpha decay, shown in Fig. 3-3, the nucleus emits a 4 He nucleus, an alpha particle. Alpha decay occurs most often in massive nuclei that have too large a proton to neutron ratio.An alpha particle, with its two protons and two neutrons, is a very stable configuration of particles.n alpha-particle decay. In alpha decay, shown in Fig. 3-3, the nucleus emits a 4 He nucleus, an alpha particle. Alpha decay occurs most often in massive nuclei that have too large a proton to neutron ratio.
gite. n. A simple, usually inexpensive rural vacation retreat especially in France. [French.
Wiktionary(0.00 / 0 votes)Rate this definition: 1  chute(Noun) A framework, trough, or tube, upon or through which objects are made to slide from a higher to a lower level, or through which water passes to a wheel. 2  chute(Noun) parachute.