elements from lightest to heaviest. When Mendeleev proposed his periodic table, he noted gaps in the table and predicted that then-unknown elements existed...

me – D. Mendeleev), p. 13. – Leningrad: D. I. Mendeleev's Museum-Archive, 207 pages (in Russian) Maria Mendeleeva (1951). D. I. Mendeleev's Archive:...

Mendeleev and Meyer for their work to classify the elements; although two of Mendeleev's predicted elements had been discovered by then, Mendeleev's predictions...

his periodic table, and Mendeleev successfully used the periodic law to predict some properties of some of the missing elements. The periodic law was recognized...

by Pauling but never revised after other elements' electronegativities were updated for precision. Predicted to be higher than that of caesium. Konings...

pre-historical Roman 10 month calendar. See Roman Calendar. See Mendeleev's predicted elements for the most common use of Sanskrit numerical prefixes. The...

Actinide History of the periodic table Mendeleev's predicted elements Glenn Seaborg (1946). "The Transuranium Elements". Science. 104 (2704): 379–386. Bibcode:1946Sci...

discoveries were accepted. Mendeleev's predicted elements – a much earlier (1869) system of naming undiscovered elements "Element names >100". Koppenol...

from Mendeleev's method of 640 °C (1,184 °F), have also been suggested. The density of francium is expected to be around 2.48 g/cm3 (Mendeleev's method...

elements. The most common naturally occurring isotope is 99Tc, in traces only. Many of technetium's properties had been predicted by Dmitri Mendeleev...

heavier elements, several possible electron configurations are predicted to have very similar energy levels, such that it is very difficult to predict the...

of its hydroxide and names it. This is the first of Dmitri Mendeleev's predicted elements to be identified. Phenylhydrazine is discovered by Hermann Emil...

elements, alchemy, and similar theories throughout history. Much of the modern understanding of elements developed from the work of Dmitri Mendeleev,...

elements would take their places. Mendeleev's discovery of this trend allowed him to predict the existence and properties of three unknown elements,...

was apparently unaware of Mendeleev's prediction, but Per Teodor Cleve recognized the correspondence and notified Mendeleev. Metallic scandium was produced...

scientists referred to as yet undiscovered elements with the use of Sanskrit prefixes (see Mendeleev's predicted elements). Scholars like Schlegel also influenced...

gallium as 4.7 g/cm3, the only property that failed to match Mendeleev's predictions; Mendeleev then wrote to him and suggested that he should remeasure the...

discoveries of the 118 chemical elements known to exist as of 2025 are presented here in chronological order. The elements are listed generally in the order...

Og. In 1933, Linus Pauling predicted that the heavier noble gases could form compounds with fluorine and oxygen. He predicted the existence of krypton hexafluoride...

compounds—which corresponded well with Mendeleev's predictions—made the discovery an important confirmation of Mendeleev's idea of element periodicity. Here...

Kean, 55 Weeks, Mary Elvira (1932). "The discovery of the elements. XIII. Some elements predicted by Mendeleeff". Journal of Chemical Education. 9 (9): 1605–1619...

in probing the chemistry of oganesson. Using Mendeleev's nomenclature for unnamed and undiscovered elements, oganesson is sometimes known as eka-radon (until...

devised an early table of elements, which was then developed into the modern periodic table of elements in the 1860s by Dmitri Mendeleev and independently by...

concentration of 1 part per billion (ppb), rhenium is one of the rarest elements in the Earth's crust. It has one of the highest melting and boiling points...

estimated at 800 °C, the same value as that predicted for the neighboring element nobelium. Its density is predicted to be around 10.3±0.7 g/cm3. The chemistry...

for reactions with such low predicted cross-sections. Using Mendeleev's nomenclature for unnamed and undiscovered elements, unbiunium should be known as...

ISBN 0-87779-603-3. Weeks, Mary Elvira (1932). "The discovery of the elements. XIII. Some elements predicted by Mendeleeff". Journal of Chemical Education. 9 (9): 1605–1619...

Dmitri Mendeleev predicted the existence of an element between thorium and uranium. The actinide series was unknown at the time, so Mendeleev positioned...

Glenn Seaborg, explains why superheavy elements last longer than predicted. The alpha-decay half-lives predicted for 291–307Uue are on the order of microseconds...

referred to as yet undiscovered elements with the use of Sanskrit numerical prefixes (see Mendeleev's predicted elements). J. Robert Oppenheimer in 1933...