Which element corresponds to the chemical symbol Mg?

The correct answer is magnesium, which is represented by the chemical symbol Mg on the periodic table. This element is classified as an alkaline earth metal and is known for its lightweight and shiny appearance. Magnesium plays a crucial role in biological systems; for instance, it is essential for the function of many enzymes and is involved in various metabolic processes within living organisms.

Furthermore, its position in group 2 of the periodic table indicates it has two electrons in its outer shell, which it readily loses to form stable compounds. Understanding chemical symbols is a foundational aspect of chemistry, as they provide a shorthand representation of elements that enables easier communication regarding chemical reactions and compounds.