Peter Jacob Hjelm
Encyclopedia
Peter Jacob Hjelm was a Swedish chemist and the first person to isolate the element molybdenum
in 1781, four years after its discovery.
. From 1784 on he was a member of the Royal Swedish Academy of Sciences
. His last position was at the laboratory of the Ministry of Mining.
Molybdenum
Molybdenum , is a Group 6 chemical element with the symbol Mo and atomic number 42. The name is from Neo-Latin Molybdaenum, from Ancient Greek , meaning lead, itself proposed as a loanword from Anatolian Luvian and Lydian languages, since its ores were confused with lead ores...
in 1781, four years after its discovery.
Life
After his studies at the University of Uppsala he received his Ph.D. He became professor at the Mining academy and in 1782 he became head of the Royal MintRoyal Mint
The Royal Mint is the body permitted to manufacture, or mint, coins in the United Kingdom. The Mint originated over 1,100 years ago, but since 2009 it operates as Royal Mint Ltd, a company which has an exclusive contract with HM Treasury to supply all coinage for the UK...
. From 1784 on he was a member of the Royal Swedish Academy of Sciences
Royal Swedish Academy of Sciences
The Royal Swedish Academy of Sciences or Kungliga Vetenskapsakademien is one of the Royal Academies of Sweden. The Academy is an independent, non-governmental scientific organization which acts to promote the sciences, primarily the natural sciences and mathematics.The Academy was founded on 2...
. His last position was at the laboratory of the Ministry of Mining.