Therefore, he formulated the Periodic Law
Venable's The Development of the Periodic Law
, published in 1896--before the discovery of the electron or modern theories such as quantum mechanics.
Among topics discussed by the 13 papers are the short happy life of Mendeleev's Periodic Law
, old and new patterns in the table, the metallurgist's periodic table and the Zintl-Klemm concept, the lanthanide elements, the heavy elements, relativity, classifying chemical elements and particles from the atomic to the subatomic scales, and quantum physics.
Section VII presents the development of specialization in chemistry, namely the birth of organic chemistry and introduction of the Periodic Law
In Chapter 7, "Classification of the Elements," Habashi details the evolution of the periodic system from its precursors, through Mendeleev's periodic law
and later modifications, to discoveries of elements through element 106.