Editing Manganese (section)

===Physical properties===
Manganese is a silvery-gray [[metal]] that resembles [[iron]]. It is hard and very brittle, difficult to melt, but easy to oxidize.<ref name="Holl">{{cite book|publisher=Walter de Gruyter|date=1985|edition=91–100 |pages=1110–1117|isbn=978-3-11-007511-3|title=Lehrbuch der Anorganischen Chemie|first=Arnold F.|last=Holleman|author2=Wiberg, Egon|author3=Wiberg, Nils|language=de|chapter=Mangan}}</ref> Manganese and its common ions are [[paramagnetic]].<ref name="magnet">{{cite book |url=https://archive.org/details/crchandbookofche81lide |url-status=live |title=Magnetic susceptibility of the elements and inorganic compounds, in Handbook of Chemistry and Physics |publisher=CRC press |isbn=978-0-8493-0485-9 |first=David R. |last=Lide |date=2004 |url-access=registration |access-date=7 September 2019 |pages=4–136}}</ref> Manganese tarnishes slowly in air and [[Oxidation|oxidizes]] ("rusts") like iron in water containing dissolved oxygen.<ref>{{Britannica|id=361875|title=Manganese}}</ref>