2 Basics

3rd paragraph:

"[Definition: An atomic value is a value in the value space of an atomic type, as defined in [XML Schema 1.0] or [XML Schema 1.1].]"

XML Schema 1.0 - "Atomic type" appears once in part 1, 3.14.1, which is marked as non-normative.


XML Schema 1.1 "Atomic type appears once in part 1, 3.16.1, which is a normative section.

The lack of structure prevents more exact referencing. 

Atomic type does not appear at all in part 2 of either XML Schema 1.0 or 1.1 (If you are thinking of anyAtomicType, close but no prize)