Magnesium is classified as a metal due to its number of valence electrons. How many does it have?

Magnesium is classified as a metal because it has two valence electrons, which are located in its outermost shell. The presence of these two valence electrons allows magnesium to form bonds readily, either by losing those electrons to achieve a stable electron configuration similar to that of the noble gases or by participating in ionic bonding. Metals typically have fewer valence electrons, and this characteristic plays a key role in their ability to conduct electricity and heat, as well as their malleability and ductility. In the case of magnesium, this two-electron configuration enables it to easily form compounds, such as magnesium oxide or magnesium chloride, through its reactions with nonmetals.

Understanding this concept of valence electrons is essential in distinguishing between metals and nonmetals, as well as predicting the behavior of different elements during chemical reactions.