Physics. a measure of the stability of an atomic nucleus, equal to 104 multiplied by the mass defect and divided by the mass number.
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Origin of packing fraction
First recorded in 1925–30
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
British Dictionary definitions for packing fraction
a measure of the stability of a nucleus, equal to the difference between its mass in amu and its mass number, divided by the mass number
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 packing fraction
[ păk′ĭng ]
The ratio of the total volume of a set of objects packed into a space to the volume of that space.
The difference between the isotopic mass of a nuclide and its mass number, divided by its mass number. The packing fraction is often interpreted as a measure of the stability of the nucleus.
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