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An understanding of the structure of the atom will help you make sense of the chemistry of climate science. Answer the following questions to test your understanding of atomic structure.


The subatomic particle that has the smallest mass is:

  1. the proton
  2. the neutron
  3. the electron
  4. they all have the same mass

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The correct answer is C.


True or False: Protons and electrons are contained in the nucleus.

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The correct answer is false. The protons and neutrons are contained in the nucleus.

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