Per Teodor Cleve (Stockholm February 10, 1840 – Uppsala June 18, 1905) was a Swedish chemist and geologist. The Old town in Stockholm from the air Stockholm â–¶(?) is the capital of Sweden, located on the east coast at the entrance of lake Mälaren. ... February 10 is the 41st day of the year in the Gregorian Calendar. ... 1840 is a leap year starting on Wednesday (link will take you to calendar). ... Uppsala (older spelling Upsala) 59°51′ N 17°38′ E is a Swedish City in central Sweden, located about 70 km north of Stockholm. ... June 18 is the 169th day of the year in the Gregorian Calendar (170th in leap years), with 196 days remaining. ... 1905 was a common year starting on Sunday (see link for calendar). ... Look up chemist on Wiktionary, the free dictionary. ... A geologist is a contributor to the science of geology. ...

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. After employment with the university in Uppsala and travels in Europe and North America, he received a professorship of general and agricultural chemistry in Uppsala in 1874. A gymnasium is a type of school of secondary education in parts of Europe. ... 1858 is a common year starting on Friday. ... Uppsala University (Swedish Uppsala universitet) is a public university in Uppsala, Sweden. ... 1863 is a common year starting on Thursday. ...

Cleve discovered the elements holmium and thulium in 1879. Also, in 1874, he concluded that didymium was in fact two elements, now known as neodymium and praseodymium. General Name, Symbol, Number holmium, Ho, 67 Chemical series lanthanides Group, Period, Block ?, 6, f Appearance silvery white Atomic mass 164. ... General Name, Symbol, Number Thulium, Tm, 69 Chemical series Lanthanides Group, Period, Block NA, 6, f Density, Hardness 9321 kg/m3, no data Appearance silvery gray Atomic properties Atomic weight 168. ... See also: Other events of 1879 List of years in science . ... See also: Other events of 1874 List of years in science . ... Didymium is a mixture of the elements praseodymium and neodymium. ... General Name, Symbol, Number neodymium, Nd, 60 Chemical series lanthanides Group, Period, Block ?, 6, f Appearance silvery white, yellowish tinge Atomic mass 144. ... For other meanings of the abbreviation Pr or PR, see Pr and PR. General Name, Symbol, Number praseodymium, Pr, 59 Chemical series lanthanides Group, Period, Block ?, 6, f Appearance silvery white, yellowish tinge Atomic mass 140. ...

He received the Davy Medal of the Royal Society in 1894, "for his researches on the chemistry of the rare earths". The mineral cleveite was named in 1878 by the geologist and explorer Adolf Erik Nordenskiöld in his honour. The Davy Medal is a bronze medal that has been awarded annually by the Royal Society in London since 1887. ... The premises of the Royal Society in London. ... 1894 was a common year starting on Monday (see link for calendar). ... Cleveite is a radioactive mineral containing uranium and found in Norway. ... 1878 was a common year starting on Tuesday (see link for calendar). ... Nils Adolf Erik Nordenskiöld by Georg von Rosen Baron (Nils) Adolf Erik Nordenskiöld, also known as A. E. Nordenskioeld (November 18, 1832, Helsinki,Finland (then Grand Duchy of Finland) — August 12, 1901,Dalby, SkÃ¥ne, Sweden) was a geologist, mineralogist and arctic explorer of Finland-Swedish extraction. ...

Cleve was the maternal grandfather of Ulf von Euler, a Nobel prize winner, physiologist and pharmacologist. Ulf Svante von Euler (b. ... Sir Edward Appletons medal Photographs of Nobel Prize Medals. ... Physiology (in Greek physis = nature and logos = word) is the study of the mechanical, physical, and biochemical functions of living organisms. ... Pharmacology (in Greek: pharmacon is drug, and logos is science) is the study of how chemical substances interfere with living systems. ...

External links

• Works by Per Teodor Cleve at Project Gutenberg