Editing Group 10 element (section)

==== Palladium ====
Palladium was isolated by [[William Hyde Wollaston]] in 1803 while he was working on refining platinum metals.<ref name=":4"/> Palladium was in a residue left behind after platinum was precipitated out of a solution of [[hydrochloric acid]] and nitric acid as (NH<sub>4</sub>)PtCl<sub>6</sub>.<ref name=":2"/> Wollaston named it after the recently discovered asteroid [[2 Pallas]] and anonymously sold small samples of the metal to a shop, which advertised it as a "new noble metal" called "Palladium, or New Silver".<ref>{{Cite journal |last=Usselman |first=Melvyn C. |date=1978-11-01 |title=The Wollaston/Chenevix controversy over the elemental nature of palladium: A curious episode in the history of chemistry |url=https://doi.org/10.1080/00033797800200431 |journal=Annals of Science |volume=35 |issue=6 |pages=551–579 |doi=10.1080/00033797800200431 |issn=0003-3790|url-access=subscription }}</ref> This raised doubts about its purity, source, and the identity of its discoverer, causing controversy. He eventually identified himself and read his paper on the discovery of palladium to the Royal Society in 1805.<ref>{{Cite journal |last=Wollaston |first=William Hyde |date=1805-01-01 |title=XXII. On the discovery of palladium; with observations on other substances found with plantina |journal=Philosophical Transactions of the Royal Society of London |volume=95 |pages=316–330 |doi=10.1098/rstl.1805.0024|s2cid=97424917 |doi-access=free }}</ref>