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Type: Multiple-Choice
Category: Periodic Table and Elements
Level: Grade 8
Score: 1
Author: doliver701
Last Modified: 2 years ago

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Periodic Table and Elements Question

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Grade 8 Periodic Table and Elements

The reactivity of an element is determined by                      .
  1. valence electrons
  2. inner shell electrons
  3. neutrons
  4. protons
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