the atomic number or neutron number of an exceptionally stable nuclide.
Why Veterans Day And The Number 11 Are Tied TogetherNovember 11th is the 315th day of the year (except on leap years). It’s also Veterans Day, a federal holiday honoring all military veterans.
Origin of magic number
First recorded in 1945–50
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
British Dictionary definitions for magic number
physics any of the numbers 2, 8, 20, 28, 50, 82, and 126. Nuclides with these numbers of nucleons appear to have greater stability than other nuclides
chem a number of atoms that is particularly stable in certain types of compound that have clusters of the same type of atom
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Science definitions for magic number
[ măj′ĭk ]
Any of the numbers, 2, 8, 20, 28, 50, 82, or 126, that represent the number of neutrons or protons in strongly bound and exceptionally stable atomic nuclei. The existence of such stable nuclei is explained by assuming a shell structure for nucleons, much like the shell structure of electron orbitals around the nucleus.
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