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physical object > natural object > particle > boson > Bose-Einstein nucleus > 4N nucleus > alpha-particle |
alpha-particle comparison table |
Subject | is a kind of | is an instance of | has definition |
---|---|---|---|
4N nucleus | Bose-Einstein nucleus | Nuclei possessing equal and even numbers of neutrons and protons. 4N nuclei are formed in supernova envelopes at temperatures of at least 2 × 109 K and are very stable. | |
alpha-particle | 4N nucleus | Particle first discovered in radioactive α decay, and later identified as helium nuclei (two protons and two neutrons bound together). |
Up: 4N nucleus