Scientists have achieved the first real-time visualization of how excited-state aromaticity emerges within just hundreds of femtoseconds and then triggers a molecule to change from bent to planar ...

VSEPR theory provides a practical way to predict the 3D shapes of molecules by focusing on how electron pairs repel each other. This model explains why atoms arrange in specific geometries, from ...

Bond polarity is all about how atoms share electrons—and when that sharing isn’t equal, fascinating things happen. From electronegativity differences to molecular geometry, these factors decide ...