Question

Consider two nuclei of the same radioactive nuclide. One of the nuclei was created in a supernova explosion $5$ billion years ago. The probability of decay during the next time is.

• A. Different for each nuclei
• B. Nuclei created in explosion decays first
• C. Nuclei created in the reactor decays first
• D. Independent of the time of creation

Answer 1

The correct option is D Independent of the time of creation

D. Independent of the time of creation

Radioactive decay is a statistical process which depends upon the instability of the particular radioisotope, but which for any given nucleus in a sample is completely unpredictable. It does not depend on the time of creation also.