Are molecules flat like a pancake?

No, molecules are not flat like a pancake. They can have different shapes:

* Linear: Like a straight line (e.g., carbon dioxide, CO2)

* Planar: Like a flat sheet (e.g., benzene)

* Tetrahedral: Like a pyramid (e.g., methane, CH4)

* Trigonal pyramidal: Like a pyramid with a flat base (e.g., ammonia, NH3)

* Bent: Like a V-shape (e.g., water, H2O)

* Complex: Many molecules have more intricate shapes, combining different basic geometries.

The shape of a molecule depends on the arrangement of its atoms and the bonds between them. This arrangement is determined by the number of electrons surrounding each atom and how they are distributed in orbitals.

Think of it like this: Imagine building a molecule with LEGOs. You can build a flat structure, but you can also build 3D shapes like pyramids or cylinders.