Daltons theory - PowerPoint PPT Presentation

History of Elementary Particles

History of Elementary Particles. Let’s call it … an atom. Greeks invented concept of Atom approximately 2500 years ago Later thought matter was made up of fire,water,air,earth. Definition of Atom:. Smallest particle of an element that retains the chemical identity of the element.

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549 views • 28 slides

Chemistry

Chemistry. What is chemistry? Chemistry is the study of matter, what it is made of, and how it changes. What is matter? Matter is anything that… Has mass. Takes up space. What Is Matter?. Pretty much everything Element

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358 views • 18 slides

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