atomic mass: References & Edit History

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Article History

Type Description Contributor Date
Invalidated site: San Jose State University - The Semiempirical Formula for Atomic Masses. Nov 09, 2026
Add new Web site: IOPscience - Journal of Physics: Conference Series - The atomic mass evaluation - present and future. Mar 19, 2026
Add new Web site: Chemistry LibreTexts - Isotopes. Dec 12, 2025
Add new Web site: Chemistry LibreTexts - Atomic Number. May 29, 2025
Add new Web site: San Jose State University - The Semiempirical Formula for Atomic Masses. May 28, 2025
Add new Web site: Montgomery College - Atomic Mass (PDF). Apr 05, 2025
Add new Web site: Open Library Publishing Platform - Enhanced Introductory College Chemistry - Atomic Mass. Feb 01, 2024
Add new Web site: Chemistry LibreTexts - Atomic Masses. Nov 24, 2023
Links and videos added. May 30, 2023
Added a cross-reference to atomic mass unit. Mar 17, 2023
Add new Web site: Westfield State University - Atomic Mass. Dec 30, 2022
Add new Web site: Chemistry LibreTexts - Atomic Mass. Oct 10, 2022
Added material about the atomic mass unit also being called the dalton. Apr 06, 2021
Add new Web site: Angelo State University - Atomic Masses. Sep 19, 2016
Add new Web site: Westfield State University - Department of Chemical and Physical Sciences - Atomic Mass. Sep 19, 2016
Updated value of atomic mass unit from 1.66053878 x 10^-24 gram to 1.660539040 x 10^-24 gram. Nov 19, 2015
Changed value of atomic mass unit from 1.66053873 x 10^-24 gram to 1.66053878 x 10^-24 gram. Aug 11, 2010
Article revised and updated. Dec 08, 2006
Article added to new online database. Jul 20, 1998
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