MCQ
A chlorine atom whose nucleus contains 17 protons and 20 neutrons. Find out the composition of the nucleus of an isotope of chlorine?
- A20 protons, 17 neutrons
- B19 protons, 18 neutrons
- C18 protons, 18 neutrons
- D17 protons, 19 neutrons
✓
Answer
- 17 protons, 19 neutrons
Explanation:
Isotope nucleus means that those nucleus has same protons number but different neutrons and mass number. Since chlorine has 17 protons so its isotope also will have 17 protons.
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