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?
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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