In the reaction, 234Th92 → 234Y91 + 0e-1, the electron 0e-1 emits from the:
Correct answer: C. Z + 1, A
- A. Z - 6, A - 12
- B. Z - 2, A - 4
- C. Z + 1, A
- D. Z + 3, A
Explanation
Z + 1, A: This option suggests that the electron is emitted from the electron cloud, resulting in a change in the atomic number (Z) but no change in the mass number (A) of the nucleus. This option is correct because the emission of an electron does not affect the number of protons and neutrons in the nucleus.
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