PROTOTYPE: a suggestion, not an official CIAAW or IUPAC page. Official values are at ciaaw.org.
IUPAC Project 2019-020-2-024Linked-data suggestion ยท unofficial prototype

Comparison

The isotopic abundances and the standard atomic weights in this data are compared with other resources, to find values that differ and isotopes or elements that are missing on one side. A difference is a reason to look at both sides, not a verdict on which one is right.

Resource Compared on Different values No value Not found
Wikidata abundances 2026-11-05 160 2 0
Wikidata atomic weights 2026-11-05 0 0 0
BODR 2026-11-05 133 1 0

Each comparison is a script that writes JSON, which the pages are built from, see the README.