Like all alkaline earth metals, magnesium has two valence electrons, meaning there are two electrons in its outer shell. The valence electrons are the ones that an atom shares, gains or loses when interacting with additional atoms.
The alkaline earth metals comprise Group IIA on the periodic table of elements. Magnesium, like the other alkaline earth metals, is more likely to lose its two electrons when reacting with other atoms, thereby forming divalent cations. This is due to the fact that the electrons do not have a strong bond with the nucleus. Magnesium also has a low level of electron affinity and low electronegativity. Magnesium has an atomic number of 12.Learn More
Iron, or Fe, has 26 electrons, with two electrons in the outer valence shell. Iron is a transition metal and is both lustrous and easy to work with. Iron is also prone to rust, especially in damp environments.Full Answer >
Helium is the only element with two electrons in its outer shell. Next to hydrogen, helium is the element with the highest abundance in the entire universe, forming the heart of most stars and star-like celestial bodies.Full Answer >
Each magnesium atom has two valence electrons. Valence electrons obtain their name from their location within an atom. These electrons are located within the outer layer of an atom.Full Answer >
Magnesium has two valence electrons. Valence electrons determine the chemical properties of an atom. The periodic table of elements is used to find the number of valence electrons in an element.Full Answer >