Question detail
What is a radioactive isotope and how does it differ from a stable isotope?
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
Question
Type
exam_style
Style
Topic
Atoms and isotopes
Question
What is a radioactive isotope and how does it differ from a stable isotope?
Answer
A radioactive isotope is an isotope with an unstable nucleus that can emit radiation as it decays to become more stable. In contrast, stable isotopes have nuclei that do not change over time and do not emit radiation.
Explanation
This question tests the understanding of the concept of radioactive isotopes and their stability compared to stable isotopes. It requires students to recall definitions and differentiate between types of isotopes.
Common mistake
Misunderstanding Radioactive Isotopes
Students often confuse radioactive isotopes with stable isotopes, thinking all isotopes are radioactive.
Remember that radioactive isotopes have unstable nuclei and emit radiation, while stable isotopes do not. Focus on the definition of radioactive isotopes as those with unstable nuclei.
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