Mendeleev made guesses about their weights to fit them in the table. The second thing is that he predicted the existence of new elements. When those elements are discovered, his table stands out.

KidsPost Russian scientist created a chemistry tool with room for discovery Dmitri Mendeleev’s periodic table, first published 150 years ago, left spaces for yet-to-be-discovered elements.

Mendeleev then submitted a paper to the society and in 1869 published an abstract of it along with a version of the table in Zeitschrift für Chemie (12 405). Robinson pulled out a copy of Mendeleev’s ...

On 17 February 1869, Russian chemist Dmitri Mendeleev jotted down the symbols for the chemical elements, putting them in order according to their atomic weights and inventing the periodic table ...

Dmitri Mendeleev is known as the father of the periodic table, but his interests were wide-ranging and sometimes eccentric. We take a look at his varied and often tumultuous life. Dmitri Mendeleev’s ...