An atom 17 protons, 17 electrons and 18 neutrons has a mass number of

An atom 17 protons, 17 electrons and 18 neutrons has a mass number of
  • A.
    17
  • B.
    18
  • C.
    34
  • D.
    35
  • E.
    52
Correct Answer: Option D
Explanation
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