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Discovered the atom which is a particle that could not be divided. he said they were small, gard particles.
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Wanted ti=o know why elements combine in certain proportionsbased on mass to formcompounds.He used the model call Solid Spheres.
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Developes a periodic table that organizes the element known at the time.
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Showed that there was a mistake in Dalton's theory. He discovered that there are small particles inside the atom. This means they could be divided.
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Designed an experiment to study the parts of the atom to test Thomson's theory.
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Proposed that electrons move around the nucleus in certain paths, or energy level.
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Scientists in Switzerland develope a scanning tunneling microscope, which is used to see atoms for the first time.
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Another element is added to the periodic table after a team of German Scientists synthesize an atom containing 112 protonsin its nucleus.
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Researchers use electron beam technology to create a tiny silicon transistor that is only 80 atoms wide and that can run at speeds of almost 20 gigahertz.
