In the nuclear reaction, 93N239→ 94Pu239 + ?; the missing particle is a/an__________________?
Correct answer: A. Electron
- A. Electron
- B. Proton
- C. Neutron
- D. Position
Explanation
The atomic number rises from 93 to 94 while the mass number remains 239, which identifies beta-minus decay. A neutron changes into a proton and emits an electron.
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