Exam-style question
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Which statement best describes the nature of nuclear decay compared to chemical change?.
- A.Nuclear decay is a predictable process, while chemical change is random.
- B.Nuclear decay alters the identity of the element, while chemical change does not.
- C.Nuclear decay occurs only in certain conditions, while chemical change occurs under all conditions.
- D.Nuclear decay involves only the electrons, while chemical change involves only the nucleus.
Model answer
What a good answer should say
- Nuclear decay alters the identity of the element, while chemical change does not.
Explanation
Why this works
Nuclear decay results in the transformation of one element into another due to changes in the nucleus, which can lead to the emission of particles or radiation. In contrast, chemical changes involve the rearrangement of atoms and electrons but do not alter the elemental identity.
This fundamental difference is significant in fields such as nuclear physics and chemistry, as it determines the types of reactions and processes that can occur.
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