Nuclear Shell

The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Nuclear Shell

 

According to the shell model of the nucleus, each nucleon in the nucleus is in a certain quantum state, and no more than (2j + 1) nucleons (j is the spin of the nucleon) that form a nuclear shell can be in each state with a given energy (on an energy level). Nuclei in which the nucleonic shells are completely filled are called magic nuclei. (For more details, see and MAGIC NUMBER NUCLEI.)

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.