On the Construction of Lewis Point Diagram of Aluminum Fluoride
Now I would like to discuss in detail the Lewis Point Diagram of Aluminum Fluoride ($Aluminum\ Fluoride $). The Lewis Point Diagram shows the distribution of valence electrons in atoms or molecules in an intuitive way.

First look at the element of aluminum ($Al $), whose atomic number is thirteen, the electron arrangement is $1s ^ {2} 2s ^ {2} 2p ^ {6} 3s ^ {2} 3p ^ {1} $, and the number of valence electrons is three. Fluorine ($F $) has an atomic number of nine, an electron arrangement of $1s ^ {2} 2s ^ {2} 2p ^ {5} $, and a valence electron number of seven.

In aluminum fluoride, aluminum is bonded to fluorine. To achieve a stable structure, aluminum tends to lose its trivalent electrons, while fluorine requires one electron each to achieve an octet stable structure. It is an aluminum atom bound to a trifluorine atom.

When constructing a Lewis point diagram of aluminum fluoride, the aluminum atom is first placed in the center to point out its three valence electrons. Then, around the aluminum atom, a fluorine atom is placed, and the aluminum and fluorine are connected by a short line (representing a common electron pair), and the remaining hexavalent electrons of the fluorine atom are shown as dots surrounding the fluorine atom. In this way, the surrounding aluminum atom is stabilized by the shared electrons of the fluorine atom to an eight-electron structure, and each fluorine atom also satisfies the octet. This picture is clear and clear, and the state of atomic bonding and valence electron distribution in aluminum fluoride is fully revealed, which is of great benefit to the analysis of chemical structure and the investigation of reaction mechanism.