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?
- Neutrons 53, Protons 17
- Neutrons 17, Protons 36
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Neutrons 19, Protons 17
- Neutrons 36, Protons 17
The correct answer is: C
Explanation
Mass number = number of protons + number of neutrons36 = 17 + X; X = 36 -17 = 19
19 neutrons and 17 protons