In the early twentieth century, several claims were made for the discovery of the element immediately below manganese. But this alleged element, given various names such as davyum, illenium ...
but also have some common history relating to how they were — or indeed weren't — discovered. Eric Scerri explains. Rhenium lies two places below manganese in group 7 of the periodic table and ...
The B vitamin mitigates manganese neurotoxicity, which produces symptoms that resemble Parkinson's disease. The vitamin improves dopamine production in the brain and offers potential therapeutic ...