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.
From Wikipedia, the free encyclopedia. Heishe or heishi (pronounced hee shee) are small disc-or tube-shaped beads made of organic shells or ground and polished stones. They come from the Kewa Pueblo People (formerly Santo Domingo Pueblo) of New Mexico, before the use of metals in jewelry by that people.rom Wikipedia, the free encyclopedia. Heishe or heishi (pronounced hee shee) are small disc-or tube-shaped beads made of organic shells or ground and polished stones. They come from the Kewa Pueblo People (formerly Santo Domingo Pueblo) of New Mexico, before the use of metals in jewelry by that people.