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The top documents tagged [electronsnumber of protons]
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chapter 4
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What is a model? Uses familiar ideas to explain unfamiliar facts observed in nature. It can be changed if you get new info
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Chemical Basis of Life. Matter and Energy zMatter- anything that occupies space and has mass ysolid, liquid, gas zMass-amount of matter a substance contains
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Discrete Energy and Radioactivity Unit 7.1. Disclaimer: “We return to this for HL students in Topic 12, but for now it is maybe better to accept that
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