Numerical data summarizes its composition and atomic configuration. Details its energy levels as well.

Regulations on its uses presented as well as details on its chemical composition and physical forms.

Historical overview provided as well as naming configuration and atomic data on the element.

Cites the element’s occurrence and sources. Presents numerical data discussing atomic structure.

Annual publications and relevant references archived in chronological order.

Defines its grouping scheme and physical structure as well as atomic structure.