Jump to content

Mass number

From Wikipedia, the free encyclopedia

This is an old revision of this page, as edited by Bensaccount (talk | contribs) at 18:21, 16 May 2004. The present address (URL) is a permanent link to this revision, which may differ significantly from the current revision.

(diff) ← Previous revision | Latest revision (diff) | Newer revision → (diff)

The mass number (also called nucleon number) is the number of protons and neutrons in an atomic nucleus.