Mass number: Difference between revisions
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Total number of heavy particles (protons and neutrons jointly called nucleons) in the atomic nucleus. Also called [[nucleon number]]. Symbol ''m'' in [[Mass Spectrometry|mass spectrometry]]. | Total number of heavy particles (protons and neutrons jointly called nucleons) in the atomic nucleus. Also called [[nucleon number]]. Symbol ''m'' in [[Mass Spectrometry|mass spectrometry]]. | ||
== Related Terms == | |||
*[[Mass]] | |||
== External Links == | == External Links == | ||
[[Wikipedia:Mass Number]] | *[[Wikipedia:Mass Number]] | ||
[[Category:Mass]] | [[Category:Mass]] | ||
Revision as of 16:59, 30 November 2005
| DRAFT DEFINITION |
| Mass number |
|---|
| The sum of the protons and neutrons in an atom, molecule or ion. |
| Considered between 2004 and 2006 but not included in the 2006 PAC submission |
| This is an unofficial draft definition presented for information and comment. |
Gold Book Entry
Total number of heavy particles (protons and neutrons jointly called nucleons) in the atomic nucleus. Also called nucleon number. Symbol m in mass spectrometry.
