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... they image will be seen as a single, blurred object through the light microscope. Electron microscope When light microscopes were used anything smaller than 250nm could not be seen, so the only possible solution was to use radiation that has a shorter wavelength than light. Better solution was to use electrons. They are negatively charged particles, which orbit the nucleus of the atom. When metals become very hot they lose electrons, because the electrons gain alot of energy. These electrons behave like electromagnetic radiation. They have a very short wavelength compared to light wavelength, so a greater resolving power is possible. Electron microscopes are scientific instruments that use a beam of highly energetic electrons to observe objects on a very fine scale. Electron microscopes have a focused beam of electrons instead of light to have a "image" of the object, and gain information of its structure and composition. How they work: 1. A ...