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Type: Multiple-Choice
Category: Quantum Physics and the Atom
Level: Grade 9
Author: swiftadam81
Last Modified: a month ago

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Quantum Physics and the Atom Question

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Grade 9 Quantum Physics and the Atom

What does the mass number of an atom tell you about the atom?
  1. number of electrons
  2. number of protons
  3. number of neutrons
  4. number of protons and neutrons
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