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How to find the number of protons and electrons in an element

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Elements increase in mass going left to right and similar reactivity in groups going top to bottom

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How are playing cards like the Elements on the Periodic Table?

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Lithium-ion battery

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History of the Atomic Model- Click the Image to View

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History of the Atomic Model- Click the Image to View

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Rutherford discovered the nucleus of the atom-it contains protons and neutrons

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3.3 Atomic Structure A. The Structure of the Atom B. Introduction to the Modern Concept of Atomic Structure

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Showed you ion charge and how to make a compound

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Click in the image to view

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How to find number of neutrons in an element