Isotopes of an element have different number of
Correct answer: B. neutrons
- A. protons
- B. neutrons
- C. electrons
- D. atom
Explanation
Isotopes are elements with the same proton and electron number but different neutrons so option B is correct. Difference of protons causes difference in type of elements, and difference in electrons causes formation of ions.
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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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