V-SPER

V-SPER is a free Chrome extension designed to support teaching and learning of the Valence Shell Electron Pair Repulsion (VSEPR) theory. It helps users build and visualize three-dimensional molecules, illustrating repulsion figures, geometric shapes, and bond angles crucial for predicting molecular structures.

Leveraging the Lewis electron distribution model, V-SPER enables the construction of molecules denoted as AXnEm, where 'A' is the central atom, 'X' represents surrounding atoms, and 'E' indicates lone electron pairs. Users can interactively observe how electron pairs repel each other, influencing molecular geometry, and gain a better understanding of molecular spatial arrangements. While some angles and bond lengths are modeled for visualization purposes, the app provides an intuitive learning environment for chemistry students and educators focused on molecular geometry concepts.