Magnesium (Mg) is a chemical element with the atomic number 12 and belongs to the alkaline earth metal group in the periodic table. It is a shiny, grayish-white metal that is highly reactive and easily oxidized. While magnesium itself is not necessarily negative, it can form negative ions (Mg2-) by losing two electrons in chemical reactions. These ions are commonly found in various compounds and are important for many biological processes in the human body.
