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An isotope has an atomic number of 17 and a mass number of 36. Which of the following ...

An isotope has an atomic number of 17 and a mass number of 36. Which of the following gives the correct number of neutrons and protons in an atom of the isotope?
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  • A Neutrons 53, Protons 17
  • B Neutrons 17, Protons 36
  • C Neutrons 19, Protons 17
  • D Neutrons 36, Protons 17
Correct Answer: Option C
Explanation:
Mass number = number of protons + number of neutrons
36 = 17 + X; X = 36 -17 = 19
19 neutrons and 17 protons

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