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safe2275994 artist:joycall6590 part of a set26966 moondancer6384 pony1709449 unicorn585788 series:joycall6's periodic table135 g42133915 eiffel tower183 female1918315 glasses96233 looking at you284735 lutetium6 mare812191 periodic table241 simple background641431 smiling434841 solo1511863 white background177999

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Parcly Taxel
Parcly Taxel - For supporting the site
Silly Pony - Celebrated the 13th anniversary of MLP:FIM, and 40 years of MLP!
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Ten years of changes - Celebrated the 10th anniversary of MLP:FiM!
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Princess of Science
@BigMax Snicker snicker. Lutetium is now named after the Latin name for Paris (Lutetia) but many German chemists up to the 1950s preferred the other result of yet another naming dispute, cassiopeium. Nationalistic rivalry played its part here; the latter name was suggested by an Austrian, the former by a French. A more current dispute concerns its membership in the lanthanides or transition metals; as I’ve said before orbital arguments favour it at the beginning of the 5d orbital while more pedantic ponies follow antiquated conventions by placing its +3 oxidation state amongst the 4f-orbital elements.
Background Pony #2AB3
I like the choice of Moondancer for this piece, considering how that episode’s background music played out at the very end.
Background Pony #D348
Named for Paris (Lutetia in Latin) where it was discovered by George Urbain in 1907.
 
Out of exceedingly few practical applications, mostly due to sheer cost, it has usage as a petroleum cracking catalyst and for other hydrocarbon reactions. It is also used in the form 117 Lu-DOTA-TATE as a radionuclide in neuroendocrine tumor therapy, which seems to be what Joycall went with. Probably because it’s the easiest to draw. It’s also used in detectors in Positron Emission Tomography, and surprisingly, as a phosphor for LEDs.