Question

which microscope uses a probe to map atoms on the surface of a specimen?
transmission electron microscope
compound light microscope
scanning electron microscope
scanning tunneling microscope

Explanation:

A scanning tunneling microscope uses a probe to map atoms on the surface of a specimen. It works based on the quantum - mechanical phenomenon of tunneling. Other microscopes like transmission electron microscopes, compound light microscopes, and scanning electron microscopes have different working principles and are not used for this specific atom - mapping task on specimen surfaces.

Answer:

scanning tunneling microscope