Cleve , Per Teodor
(1840–1905) Swedish chemist
Cleve, who was born in the Swedish capital Stockholm, became assistant professor of chemistry at the University of Uppsala in 1868 and was later made professor of general and agricultural chemistry there. He is mainly remembered for his work on the rare earth elements.
In 1874 Cleve concluded that didymium was in fact two elements; this was proved in 1885 and the two elements named neodymium and praseodymium. In 1879 he showed that the element scandium, newly discovered by the Swedish chemist Lars Nilson (1840–1899), was in fact the eka-boron predicted by Dmitri Mendeleev in his periodic table. In the same year, working with a sample of erbia from which he had removed all traces of scandia and ytterbia, Cleve found two new earths, which he named holmium, after Stockholm, and thulium, after the old name for Scandinavia. Holmium in fact turned out to be a mixture for, in 1886, Lecoq de Boisbaudran discovered that it also contained the new element dysprosium.
Cleve is also remembered as the teacher of Svante Arrhenius.

Scientists. . 2011.

Look at other dictionaries:

  • Cleve, Per Teodor — Cleve , Per Teodor …   Scientists

  • Cleve, Per Teodor — ▪ Swedish chemist born Feb. 10, 1840, Stockholm, Swed. died June 18, 1905, Uppsala       Swedish chemist who discovered the elements holmium and thulium.       Cleve became assistant professor of chemistry at the University of Uppsala in 1868 and …   Universalium

  • Per Teodor Cleve — Saltar a navegación, búsqueda Per Teodor Cleve Per Teodor Cleve (Estocolmo, 10 de febrero de 1840 Uppsala 18 de junio de 1905) fue un químico y geólogo sueco. Después de graduarse en el Gymnasium en Estocolmo 1858, Cleve se matriculó en la …   Wikipedia Español

  • Per Teodor Cleve — (* 10. Februar 1840 in Stockholm; † 18. Juni 1905 in Uppsala) war ein schwedischer Naturforscher und Professor. Inhaltsverzeichnis 1 …   Deutsch Wikipedia

  • Per Teodor Cleve — Pour les articles homonymes, voir Cleve. Per Teodor Cleve Naissance 10 février 1840 Stockholm (Suède) Décès 18 …   Wikipédia en Français

  • Per Teodor Cleve — (Stockholm February 10, 1840 ndash; Uppsala June 18, 1905) was a Swedish chemist and geologist.After graduating from the Stockholm Gymnasium in 1858, Cleve matriculated at the University of Uppsala in May 1858, where he received his Ph.D. in 1863 …   Wikipedia

  • Per Theodor Cleve — Per Teodor Cleve Per Teodor Cleve (* 10. Februar 1840 in Stockholm; † 18. Juni 1905 in Uppsala) war ein schwedischer Naturforscher und Professor. Inhaltsverzeichnis 1 …   Deutsch Wikipedia

  • Per Theodor Cleve — Pour les articles homonymes, voir Cleve. Per Theodor Cleve. Per Teodor Cleve (Stockholm 10 février 1840 – Uppsala 18 juin …   Wikipédia en Français

  • Per Thodor Cleve — Per Theodor Cleve Pour les articles homonymes, voir Cleve. Per Theodor Cleve. Per Teodor Cleve (Stockholm 10 février 1840 – Uppsala 18 juin …   Wikipédia en Français

  • Per Theodor — Cleve Pour les articles homonymes, voir Cleve. Per Theodor Cleve. Per Teodor Cleve (Stockholm 10 février 1840 – Uppsala 18 juin …   Wikipédia en Français

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”