Which radiation has the maximum ionization power?
Correct answer: D. Alpha
- A. Alpha and beta have the same ionizing power
- B. Beta
- C. Gamma
- D. Alpha
Explanation
The order of ionizing power of alpha, beta, and gamma rays is as follows:Alpha > Beta > GammaAn alpha ray particle, which is a helium nucleus, is the largest and interacts with significantly more particles than either beta or gamma particles. Therefore, an alpha ray covers the least distance and ionizes the most number of surrounding particles.
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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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