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CGP EDU Academic Team
Published on: September 12, 2026
Radioactivity is
Text Solution
Verified by ExpertsThe correct answer is:
D
Step 1: Understand the nature of radioactivity. Radioactivity is the process by which unstable atomic nuclei lose energy by emitting radiation.
Step 2: Analyze the options:
Step 2: Analyze the options:
- Irreversible process: Once an atom undergoes radioactive decay, it cannot be transformed back into its original, unstable condition. This makes it an irreversible process.
- Self disintegration process: Radioactive decay involves the self-disintegration of the nucleus as it emits particles or electromagnetic waves to reach a more stable state.
- Spontaneous process: Radioactivity occurs without any external influence; it is a spontaneous process driven by the instability of the atomic nucleus.
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