Rhenium in a sentence

Both scientists began their work using the prevailing theory that element 93 would have similar chemistry to rhenium, but Segrè rapidly determined that McMillan's sample was not at all similar to rhenium.

Isotopes main Rhenium has one stable isotope, rhenium-185, which nevertheless occurs in minority abundance, a situation found only in two other elements ( indium and tellurium ).

This lifetime can be greatly affected by the charge state of rhenium atom. citation citation The beta decay of 187 Re is used for rhenium-osmium dating of ores.

When annealed this metal is very ductile and can be bent, coiled, or rolled. citation Rhenium-molybdenum alloys are superconductive at 10 ; tungsten-rhenium alloys are also superconductive citation around 4–8 K, depending on the alloy.

At the same time, it is planned to establish the production of heat-resistant nickel alloys, which make up to 50% of the cost of jet aircraft engines, based on rhenium, tantalum, tungsten, nickel and cobalt.

Analytical results from sampling of the initial 26 holes display anomalous results for uranium, vanadium, molybdenum, selenium and rhenium (sampling protocol described below).

Bromides and iodides of rhenium are also well known.

Chemistry experiments have confirmed that bohrium behaves as the heavier homologue to rhenium in group 7. The chemical properties of bohrium are characterized only partly, but they compare well with the chemistry of the other group 7 elements.

Discovered in 1925, rhenium was the last stable element to be discovered.

For a long time, chemists thought that element 93 would be homologous to rhenium, making the discovery and identification of neptunium nearly impossible.

In 2006, 77% of the rhenium consumption in the United States was in alloys.

Its existence was predicted by Dmitri Mendeleev in 1869, though it was not identified until 1923, making it the penultimate stable element to be discovered ( rhenium was identified two years later).

It was assigned the symbol Fa, but this abbreviation was revised to the current Fr shortly thereafter. citation Francium was the last element discovered in nature, rather than synthesized, following rhenium in 1925.

Normally Re 2 O 7 on alumina is used for this process. citation Rhenium catalysts are very resistant to chemical poisoning from nitrogen, sulfur and phosphorus, and so are used in certain kinds of hydrogenation reactions.

Refractory metals such as tungsten and rhenium do not emerge from the target even at high temperatures due to their low vapour pressure.

Rhenium compounds are known for all the oxidation states between −3 and +7 except −2.

Rhenium shows in its compounds a wide variety of oxidation states ranging from −1 to +7.

Since rhenium was discovered in 1925, citation hafnium was the next-to-last element with stable isotopes to be discovered.

The ionic radius of hexacoordinate heptavalent bohrium is expected to be 58 pm (heptavalent manganese, technetium, and rhenium having values of 46, 57, and 53 pm respectively).

The isothermal adsorption curves were measured and gave strong evidence for the formation of a volatile oxychloride with properties similar to that of rhenium oxychloride.