neutron number

American

noun

Physics.

the number of neutrons in the nucleus of an atom, equal to the mass number minus the atomic number of the atom. N

neutron number British

noun

N. the number of neutrons in the nucleus of an 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

Etymology

Origin of neutron number

First recorded in 1950–55

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

A more detailed analysis reveals that their lifetimes increase towards the magic neutron number 184.

From Science Daily • Feb. 13, 2024

However, the neutron number 184 is still a long way from being reached, so the 30 seconds are only one step on the way.

From Science Daily • Feb. 13, 2024

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023