Which microscope uses a beam of electrons to produce a magnified image?

Which microscope uses a beam of electrons to produce a magnified image?

• A. Electron dot diagram
• B. Ion
• C. Valence electrons
• D. Electron microscope

Answer: (D)

An electron microscope uses a beam of electrons to produce a magnified image. Because electrons have much shorter wavelengths than visible light, this type of microscope can resolve much finer detail and magnify much more than light microscopes, letting us see structures at the cellular or molecular level. The other options aren’t imaging tools: an electron dot diagram is a way to show where an atom’s electrons are, not something that images things; an ion is an atom with a net electric charge; valence electrons are the outermost electrons in an atom.

An electron microscope uses a beam of electrons to produce a magnified image. Because electrons have much shorter wavelengths than visible light, this type of microscope can resolve much finer detail and magnify much more than light microscopes, letting us see structures at the cellular or molecular level.

The other options aren’t imaging tools: an electron dot diagram is a way to show where an atom’s electrons are, not something that images things; an ion is an atom with a net electric charge; valence electrons are the outermost electrons in an atom.