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I'm bothered by the Rd symbol of Radon on the page, it's should be Rn. It makes me double-check if there's actually an element that's not Radium (Ra), not Radon (Rn), but also starts with an R and has a d in its name.


Noticed this too, it's been since fixed :)


Rhodium, but that's Rh.


Neat, one more element to the "Rd" element group.




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