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A horizontal row associated with progressive filling of electron shells and subshells.
wp-chem-periodic-tableopenstax-chemistry-2eiupac-periodic-tableEach relation below ends at this concept.
No direct relations are authored in this direction.
Each relation below starts at this concept.
This is an authored directed relation from the source endpoint to the target endpoint.
Periods organize sequential proton numbers and the associated shell and subshell filling patterns.
The source supplies a substantive formal ingredient, dynamical sector, law, field content, or mechanism of the target theoretical framework.
wp-chem-periodic-tableopenstax-chemistry-2eiupac-periodic-table