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Rhodium (Rh) - Rhodium ist ein chemisches Element mit dem Elementsymbol Rh und der Ordnungszahl 45. Es ist ein silberweißes, hartes, unreaktives Übergangsmetall. Im Periodensystem zählt es zusammen mit Cobalt, Iridium und Meitnerium zur 9.

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112 Cartoon Elements Make Learning The Periodic Table Fun

109 Meitnerium


Lise Meitner (1878 – 1968) was a physicist who worked on radioactivity and nuclear physics. Meitner was part of the team that discovered nuclear fission, an achievement for which her colleague Otto Hahn was awarded the Nobel Prize. Meitner is often mentioned as one of the most glaring examples of women's scientific achievement overlooked by the Nobel committee. Element 109, meitnerium, is named in her honour.


#OTD #HistSci 29 August 1982 Element number 109 is first observed at Darmstadt, Germany. It was named Meitnerium after Lise Meitner (who along with Otto Hahn, discovered nuclear fission). Since curium was named after both Marie and Pierre Curie, meitnerium is the only element named after a woman. © Science Picture Co/Getty Images

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Meitnerium, symbol Mt with atomic number 109, is first synthesised 29 August 1982.