In nuclear reactions, ______________ number is conserved?
Correct answer: C. Both A. & B.
- A. Mass
- B. Atomic
- C. Both A. & B.
- D. Neither A. nor B.
Explanation
In nuclear reactions, conservation applies to mass number and atomic number: the total nucleon count and total charge remain balanced on both sides. Strictly, it is mass number rather than rest mass that is conserved in this accounting sense.
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