SEM stands for scanning electron microscope. The SEM is a microscope that uses electrons instead of light to form an image. Since their development in the early 1950's, scanning electron microscopes ...

Just about everyone knows that water is H2O, meaning two hydrogen atoms and one oxygen ... the area using a high-vacuum transmission electron microscope. It is very complex and requires highly ...

Each atom then has a complete outer shell of ... molecules are too small to see even with the strongest light microscope. Some electron microscopes can produce images of atoms and simple molecules.