Practice Quiz

MCAS Chemistry Exam Practice

Category - Chemistry

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The atomic number of an element indicates which of the following?
  1. the number of neutrons in the atom
  2. the number of protons in the atom
  3. the sum of the neutrons and protons in the atom
  4. the sum of the protons and electrons in the atom
Explanation
Answer: B - the number of protons in the atom.
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