The numbers of neutrons present in a nucleus is given by:
Correct answer: C. N = A - Z
- A. N = A+Z
- B. N = AZ
- C. N = A - Z
- D. N = Z - A
Explanation
The number of neutrons is equal to the difference between the mass number of the atom (A) and the atomic number (Z).number of neutrons = mass number - atomic number.
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Atomic nuclei contain protons and neutrons, with nuclear size, mass defect and binding energy describing their stability. The work covers alpha, beta and gamma decay, decay equations, half-life and decay rate, along with radiation safety and medical applications such as imaging, radiotherapy and tracers.
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