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Type: Multiple-Choice
Category: Periodic Table and Elements
Level: Grade 11
Score: 2
Author: Ms_VThomas
Last Modified: 13 years ago

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Periodic Table and Elements Question

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Grade 11 Periodic Table and Elements

Which atom contains exactly 15 protons?
  1. P-32
  2. S-32
  3. O-15
  4. N-15