Matches in DBpedia 2016-04 for { <http://dbpedia.org/resource/Gnomium> ?p ?o }
Showing triples 1 to 31 of
31
with 100 triples per page.
- Gnomium abstract "Gnomium was the proposed name for a new element similar to nickel and cobalt. Gerhard Krüss and F. W. Schmidt thought that existence of this element would solve an apparent problem in the periodic table.Dmitri Mendeleev and Lothar Meyer were the first to arrange elements in a periodic table ordered by atomic weight, thereby revealing periodic patterns of chemical and physical properties. The use of atomic weight in the ordering — the concept of atomic number not yet having been established — resulted in several problems, one being a discrepancy in the iron group elements.Ordered by atomic weight, the sequence would be:iron (55.845) — nickel (58.6934) — cobalt (58.9331)But arrayed by chemical properties, especially the highest possible oxidation numbers, the sequence would be:iron (+6) — cobalt (+5) — nickel (+4)It was initially believed that this problem was due to inadequate measurement of atomic weights, but after several years those of cobalt and nickel were established more precisely and the contradiction remained. In 1892, Krüss and Schmidt proposed to solve it by postulating a new element, very similar to and nearly inseparable from cobalt, but with a higher atomic weight, so that its mixture with cobalt would be heavier than nickel. That proposed element was named gnomium.However, attempts to isolate gnomium proved fruitless.It was the introduction of the concept of atomic number, and the re-ordering of the periodic table by atomic number, that resolved this and related problems and obviated the hypotheses for gnomium:iron (26) — cobalt (27) — nickel (28)".
- Gnomium wikiPageID "24244743".
- Gnomium wikiPageLength "3477".
- Gnomium wikiPageOutDegree "12".
- Gnomium wikiPageRevisionID "633448106".
- Gnomium wikiPageWikiLink Atomic_number.
- Gnomium wikiPageWikiLink Category:Misidentified_chemical_elements.
- Gnomium wikiPageWikiLink Cobalt.
- Gnomium wikiPageWikiLink Dmitri_Mendeleev.
- Gnomium wikiPageWikiLink F._W._Schmidt.
- Gnomium wikiPageWikiLink Gerhard_Krüss.
- Gnomium wikiPageWikiLink Iron_group.
- Gnomium wikiPageWikiLink Julius_Lothar_Meyer.
- Gnomium wikiPageWikiLink Nickel.
- Gnomium wikiPageWikiLink Periodic_table.
- Gnomium wikiPageWikiLink Relative_atomic_mass.
- Gnomium wikiPageWikiLinkText "Gnomium".
- Gnomium wikiPageWikiLinkText "gnomium".
- Gnomium wikiPageUsesTemplate Template:Cite_journal.
- Gnomium wikiPageUsesTemplate Template:Reflist.
- Gnomium subject Category:Misidentified_chemical_elements.
- Gnomium hypernym Name.
- Gnomium type Element.
- Gnomium type Theory.
- Gnomium comment "Gnomium was the proposed name for a new element similar to nickel and cobalt. Gerhard Krüss and F. W. Schmidt thought that existence of this element would solve an apparent problem in the periodic table.Dmitri Mendeleev and Lothar Meyer were the first to arrange elements in a periodic table ordered by atomic weight, thereby revealing periodic patterns of chemical and physical properties.".
- Gnomium label "Gnomium".
- Gnomium sameAs Q5574365.
- Gnomium sameAs m.07s3kxr.
- Gnomium sameAs Q5574365.
- Gnomium wasDerivedFrom Gnomium?oldid=633448106.
- Gnomium isPrimaryTopicOf Gnomium.