Coba jelasin CRC dari Tabel konfigurasi elektron dong

David R. Lide (ed), CRC Handbook of Chemistry and Physics, 84th Edition, online version. CRC Press. Boca Raton, Florida, 2003; Section 1, Basic Constants, Units, and Conversion Factors; Electron Configuration of Neutral Atoms in the Ground State. (elements 1–104)

Also subsection Periodic Table of the Elements, (elements 1–103) berdasarkan:

G. J. Leigh, Editor, Nomenclature of Inorganic Chemistry, Blackwell Scientific Publications, Oxford, 1990.

Chemical and Engineering News, 63(5), 27, 1985.

Atomic Weights of the Elements, 1999, Pure & Appl. Chem., 73, 667, 2001.