Tolong jelaskan mengenai WebElements dari Tabel konfigurasi elektron

http://www.webelements.com/ ; diakses Juli 2005, konfigurasi elektron berdasarkan:

Atomic, Molecular, & Optical Physics Handbook, Ed. Gordon W. F. Drake, American Institute of Physics, Woodbury, New York, USA, 1996.

J.E. Huheey, E.A. Keiter, and R.L. Keiter in Inorganic Chemistry: Principles of Structure and Reactivity, 4th edition, HarperCollins, New York, USA, 1993.

R.L. DeKock and H.B. Gray in Chemical Structure and bonding, Benjamin/Cummings, Menlo Park, California, USA, 1980.

A.M. James and M.P. Lord in Macmillan's Chemical and Physical Data, Macmillan, London, UK, 1992.

103 Lr: [Rn].5f14.7s2.7p1 tentatif ; 2.8.18.32.32.9.2 [tidak konsisten]