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Section 5.2—Drawing Molecules. Drawing Molecules on Paper Lewis Structures (or Dot Structures) are one way we draw molecules on paper Since paper is 2-D
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Chapter 3 Atoms and the Periodic Table. Reactivity Groups reactivity METALS As orbits are added the electrons move further away from nucleus and become
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Atoms and Elements 30 September 2004 Physics Chemistry Chemistry Astronomy Astronomy Geology Geology Biology Biology
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Ch. 2 – The Chemistry of Life. I. THE COMPOSITION OF THE UNIVERSE A. Everything in the universe is made of up atoms. B. An element is a pure substance
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Chapter Two: Matter. Matter Atom-basic unit of matter 1. Subatomic particles- protons, neutrons, electrons A. Protons- positive charge, center of atom
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Chapter 14 Weathering and Erosion. Weathering Processes Weathering - the natural process by which atmospheric and environmental agents, such as wind,
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Bell-ringer Think critically. We say that everything has mass. Name some ways we can prove that air has mass. Which is heavier, a pound of feathers, or
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Unit 3- Electricity Ordinary matter is made up of atoms which have protons and electrons. The magnitude of the charge on one proton or electron is
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Semester 1 - Enriched Biology Notes
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