One version of this technique is aided by collecting an EELS spectrum. Uranyl acetate is used innegative-staining protocols for this procedure, and samples are preferentially prepared in vitreousice for one version of this technique. A cryogenic version of this technique can be used insingle-particle reconstruction. One type of this technique requires using a microtome to take sections,while another requires (*) coating the surface of the sample with a metal. Aberration limits the resolutionof this technique to around 2 picometers, which is much better than techniques using light. For 10 points,name this technique which comes in scanning and 
One version of this technique is aided by collecting an EELS spectrum. Uranyl acetate is used innegative-staining protocols for this procedure, and samples are preferentially prepared in vitreousice for one version of this technique. A cryogenic version of this technique can be used insingle-particle reconstruction. One type of this technique requires using a microtome to take sections,while another requires (*) coating the surface of the sample with a metal. Aberration limits the resolutionof this technique to around 2 picometers, which is much better than techniques using light. For 10 points,name this technique which comes in scanning and transmission varieties, which uses negatively-chargedparticles to image sub-cellular structures.
One version of this technique is aided by collecting an EELS spectrum.
electron microscopy [or EM; prompt on "microscopy"; accept more specific answers like scanning electron microscopy or transmission electron microscopy before mentioned]