Moderate
Beta-decay means emission of electron from:
Correct answer: A. Radioactive nucleus
- A. Radioactive nucleus
- B. Innermost electron orbit
- C. A stable nucleus
- D. Outer-most electron orbit
Explanation
A beta particle is emitted from the nucleus of an atom during radioactive decay.
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About Nuclear Physics
Atomic nuclei contain protons and neutrons, with nuclear size, mass defect and binding energy describing their stability. The work covers alpha, beta and gamma decay, decay equations, half-life and decay rate, along with radiation safety and medical applications such as imaging, radiotherapy and tracers.
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