Jean Charles Galissard de Marignac

Jean Charles Galissard de Marignac
Born24 April 1817
Geneva, Switzerland
Died15 April 1894 (1894-04-16) (aged 76)
Geneva, Switzerland
Known forMeasurement of atomic weights
Discovery of ytterbium
Codiscovery of gadolinium
AwardsPour le Mérite (1888)
Davy Medal (1886)[1]
ForMemRS (1881)
Scientific career
FieldsChemistry

Jean Charles Galissard de Marignac (24 April 1817 – 15 April 1894) was a Swiss chemist whose work with atomic weights suggested the possibility of isotopes and the packing fraction of nuclei. His study of the rare earth elements led to his discovery of ytterbium in 1878 and co-discovery of gadolinium in 1880.[1][2][3]

He was considered "one of the great chemists of the nineteenth century", particularly in the area of inorganic chemistry.[4] On 13 September 2011, the site of his laboratory at the University of Geneva was designated a historical chemical landmark of Switzerland.[5]

  1. ^ a b Cite error: The named reference Cleve was invoked but never defined (see the help page).
  2. ^ Weeks, Mary Elvira (1956). The discovery of the elements (6th ed.). Easton, PA: Journal of Chemical Education.
  3. ^ Weeks, Mary Elvira (1932). "The discovery of the elements: XVI. The rare earth elements". Journal of Chemical Education. 9 (10): 1751–1773. Bibcode:1932JChEd...9.1751W. doi:10.1021/ed009p1751.
  4. ^ Lockyer, Sir Norman (September 5, 1907). Lockyer, Norman (ed.). "Marignac's Collected Papers". Nature. 76: 465–466. Retrieved 12 December 2019.
  5. ^ "Chemical Landmark 2011 The Laboratory of Jean-Charles Galissard de Marignac". Sciences Switzerland. Archived from the original on 24 September 2019. Retrieved 12 December 2019.