Electron-Dot Diagram for Aluminum

The Electron-Dot Diagram for Aluminum

 Aluminum has 13 electrons. Its electron-configuration diagram is [Ne]3s²3p¹. [Ne] represents ten of the 13 electrons. The valence shell contains two electrons in the 3s and one electron in the 3p. The sum of electrons in the 3s and 3p is three. This means three dots will be in the electron-dot diagram, with two dots to the left and one dot above the symbol for aluminum. See figure 2.

© Pat Thayer 2014-2016