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Type: Multiple-Choice
Category: Periodic Table and Elements
Level: Grade 10
Score: 3
Author: HSimpson74
Last Modified: 14 days ago

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Periodic Table and Elements Question

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Grade 10 Periodic Table and Elements

The atomic                 of an atom is based on the number of protons in the nucleus.
  1. mass
  2. shell
  3. group
  4. number
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