In this video Paul Andersen explains how you can use Lewis Diagrams and VSEPR Models to make predictions about molecules. The Lewis diagrams are a two-dimensional representations of covalent bonds and the VSEPR models show how the...

The geometry of molecules with the general formulas AB₄, AB₅, and AB₆ is determined by the Valence Shell Electron Pair Repulsion (VSEPR) theory, which helps predict molecular shapes based on the repulsion between electron pairs around...

The Valence Shell Electron Pair Repulsion (VSEPR) theory predicts molecular shapes by focusing on the repulsion between electron pairs surrounding a central atom. The main postulates include: Electron Pair Repulsion: Electron pairs...

Bond Angle Distortion: Lone pairs reduce bond angles between bonding pairs. For example, in a molecule like NH₃ (ammonia), the ideal tetrahedral angle of 109.5° is compressed to around 107° due to the presence of a lone pair on nitrogen....

Struggling with VSEPR theory and molecular geometry? This video simplifies the concepts you need to master these essential chemistry topics. Learn how to draw Lewis structures with the correct geometry, understand bond angles, and...

Conformational isomerism arises due to the rotation around single bonds (sigma bonds) within a molecule. Unlike other types of isomerism, conformational isomers, or conformers, can interconvert without breaking bonds. For example, in...

We've learned about VSEPR theory, and we know how to use it to predict molecular geometry for a variety of organic molecules. But in fact, there are situations where predictions made with VSEPR theory do not line up with experimental...

Learn the basics about the shapes of simple molecules, when learning about properties of matter. In reality the shapes of simple molecules are 3-D molecules and should be visualised as such. Imagine now the central carbon atom surrounded...