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The top documents tagged [small unit of mass]
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small unit of mass
Elements & Atoms
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Chapter 3 ATOMIC THEORY AND THE PERIODIC TABLE. Subatomic particle DiscoveriesProperties Electron (e)Thomson, 1887Present in all atoms Extermely light.
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Elements & Atoms. What is chemistry? Chemistry is the study of matter and its interactions. Matter is anything that has volume (takes up space) and has.
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