The number of neutrons present in a nucleus is determined 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 present in a nucleus is determined by the difference between the mass number (A) and atomic number (Z). The mass number represents the total number of protons and neutrons in the nucleus, while the atomic number represents the number of protons. Therefore, the number of neutrons can be calculated as: N = A - Z If we know the values of A and Z for a given nucleus, we can determine the number of neutrons.
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