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JAMB Physics 1987 Question 49

Question 49

Radioactivity and Nuclear Physics

Isotopes are nuclei which have

  1. A.the same number of neutrons and electrons
  2. B.equal number of electrons and protons
  3. C.the same atomic number but different number of neutrons
  4. D.the same number of total particles.
Show the answer and explanation

Answer: C (the same atomic number but different number of neutrons)

Explanation

Isotopes of an element have the same number of protons (atomic number) but different numbers of neutrons.