Isotopes are the atoms of the same element which contain equal number
Correct answer: C. Protons
- A. Nucleons
- B. Neutrons
- C. Protons
- D. Neutrons and protons
Explanation
Isotopes are the elements having same atomic number or charge number but different mass number. That is number of protons and electrons are same but number of neutrons are different.
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About Composition of Atomic Nuclei
Atomic nuclei contain positively charged protons and electrically neutral neutrons, collectively called nucleons. Questions use atomic number, mass number and nuclear notation to identify isotopes, isobars and isotones, and may connect nuclear composition with nuclear charge, mass defect, binding energy and the stability of the nucleus.
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