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Type: Multiple-Choice
Category: Periodic Table and Elements
Level: Grade 9
Score: 1
Created: 2 years ago

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Periodic Table and Elements Question

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Grade 9 Periodic Table and Elements

These are pure substances that cannot be broken down into other substances by physical and chemical means.
  1. Elements
  2. Atoms
  3. Compounds
  4. Isotopes
  5. Protons
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