Moderate
92U238nucleus emits two α-particles and two β-particles and transforms into a thorium nucleus. Which of the following is the mass number and atomic number of the thorium nucleus so produced?
Correct answer: A. 230, 90
- A. 230, 90
- B. 234, 90
- C. 230. 88
- D. 234, 88
Explanation
The equation can be written as:23892U → 23090Th + 242He + 2 0-1e
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