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Type: Multiple-Choice
Category: Atomic Structure
Level: Grade 11
Author: jbrown5869
Created: a month ago

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Atomic Structure Question

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Grade 11 Atomic Structure

The atomic mass of an atom is
  1. the total number of protons plus neutrons
  2. the total number of protons
  3. the total number of neutrons
  4. the total number of protons plus electrons
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