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Type: Multiple-Choice
Category: Periodic Table and Elements
Level: Grade 10
Score: 3
Author: HSimpson74
Last Modified: 13 days ago

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Periodic Table and Elements Question

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Grade 10 Periodic Table and Elements

If the element copper has 29 protons, how many electrons does it have?
  1. 22
  2. 27
  3. 28
  4. 29
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