2ne1's Blog
Member For: 3 weeks, 4 days
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Member of: Faith Christian Academy Chemistry Forum.
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Re: Unit 1 Ch. 3 Reading Response
October 30, 2009 by 2ne1
The first electron microscope prototype was built in 1931. However, the first practical electron microscope was built in 1938.The microscope uses a beam of electrons to reveal the chemicals. The tunneling must be thin, in order to focus the beam.
They have been refined since then but the basic design is still the same. The scanning tunneling microscope is a type of electron microscope that shows three-dimensional images of a sample.The texture, structure,reactivity, and size can be recorded. By becoming more familiar with those certain particles, knowledge can expand on many different subjects.
