Four atoms of this element are found in the oxygen evolving complex in chloroplast thylakoids, and and its primary ore is pyrolusite.
Poisoning from this element is often misdiagnosed as Parkinson's Disease, and its behavioral similarity to another metal led to its use in "wartime nickels." Alkenes can be converted into diols by a compound containing a +7 state of this element, which also includes potassium and is known for being a strong oxidizer. Four atoms of this element are found in the oxygen evolving complex in chloroplast thylakoids, and and its primary ore is pyrolusite. For ten points, identify this Group 7 transition metal often used in steel alloys, with atomic number 25 and symbol Mn.
Poisoning from this element is often misdiagnosed as Parkinson's Disease, and its behavioral similarity to another metal led to its use in "wartime nickels."
{Manganese}