Mendeleev's predicted elements
Dmitri Mendeleev published a periodic table of the chemical elements in 1869 based on properties that appeared with some regularity as he laid out the elements from lightest to heaviest. When Mendeleev proposed his periodic table, he noted gaps in the table and predicted that as-then-unknown elements existed with properties appropriate to fill those gaps. He named them eka-boron, eka-aluminium and eka-silicon with atomic masses 44, 68 and 72 respectively.
List of important publications in chemistry
Importance: Topic Creator, Breakthrough, Influence. The book was one of the first to describe a modern atomic theory, a theory that lies at the basis of modern chemistry. It is the first to introduce a table of atomic and molecular weights. Surprisingly, given the period in which the book was written, of the five properties of atoms that Dalton listed, only two have been shown to be incorrect.Description and Importance: In this paper the periodic table was introduced.
Notice that the table in the above link is the original one. Since then the table structure was slightly changed and new elements were added to it.Description: Contains synthetic models selected by world-renowned experts, with full experimental procedures and background information. Considers methods from journals, books, and patent literature from the early 19th century up to the present day and presents important synthetic methods for all classes of compounds. Critically evaluates the preparative applicability and significance of the synthetic methods.