Periodic Table of Mendelejev (1/3)

Standing in front of the building of the Department of Chemistry of the University of Leuven (Faculty of Sciences): Dmitri Mendelejev (°1834), the Russian chemist who’s considered the father of the Periodic Table, subsequently named after him.?

In that time frame also Lothar Meyer (German chemist) worked on a similar type of table, creating also a kind of order in the known elements (in the 19th century).

But the Table we know today is always referred to as “(periodic) Table of Mendelejev” and one of the current elements therein is named after him, namely Mendelevium, Md-101, an actinide. The latter “group” of elements is typically characterized by the 5f series.

Initially the order and structure in the Table was based on the atomic mass (as the atomic number as a parameter didn’t exist yet) and groups of elements with similar characteristics, e.g. the alkali metals.

And thereore it’s always good to have a look at the table and the position (and hence the characteristics) of the target element(s) when starting an analysis or method development/analysis to determine the possibilities and advantages/disadvantages of a particular technology.

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Part of a 2024-Trilogy on the Table of Mendelejev (1/3).