What does it mean when an element is radioactive? Options: A . &nbspatom emits radiation B . &nbspnucei unstable due to uneven p to n ratio C . &nbspnuclei changes to become stable D . &nbspall of the above

What does it mean when an element is radioactive?

Question

What does it mean when an element is radioactive?

Options:

A . atom emits radiation

B . nucei unstable due to uneven p to n ratio

C . nuclei changes to become stable

D . all of the above

Answer: Option D

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