Mass number
id:
mass-number-292-9440529
title:
Mass number
text:
The mass number (symbol A, from the German word: Atomgewicht, "atomic weight"), also called atomic mass number or nucleon number, is the total number of protons and neutrons (together known as nucleons) in an atomic nucleus. It is approximately equal to the atomic (also known as isotopic) mass of the atom expressed in atomic mass units. Since protons and neutrons are both baryons, the mass number A is identical with the baryon number B of the nucleus (and also of the whole atom or ion). The mass
brand slug:
wiki
category slug:
encyclopedia
description:
Number of heavy particles in the atomic nucleus
original url:
https://en.wikipedia.org/wiki/Mass_number
date created:
date modified:
2024-04-15T02:39:34Z
main entity:
{"identifier":"Q101395","url":"https://www.wikidata.org/entity/Q101395"}
image:
{"content_url":"https://upload.wikimedia.org/wikipedia/commons/4/4b/NuclearReaction.svg","width":550,"height":350}
fields total:
13
integrity:
15