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The top documents tagged [electronsmass number]
Atomic Theory. Democritus – 460 – 370 BC Matter consisted of tiny particles “atomos” Ideas were wrong
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Chapter 2: The Chemical Context of Life Basic Chemistry Review Atomic Level (Phosphorus) Molecular Level (DNA)
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Composition of Matter Atom= building block of an element Smallest part of matter Protons= + charge Neutrons= 0 charge Electrons= -1 charge
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Unit 3: Atomic Structure & The Periodic Table
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Chapters 13 & 14. Energy: The capacity to do work Potential Energy: stored energy due to position or condition. Chemicals can store energy; thus they
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Composition of Matter
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Unit One
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A Guided Tour of the Periodic Table
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