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Type: Multiple-Choice
Category: Atomic Structure
Level: Grade 9
Author: jlovering
Last Modified: 7 years ago

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Atomic Structure Question

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Grade 9 Atomic Structure

Carbon-14 is an unstable form of carbon that is slightly radioactive. What is the best explanation why this isotope of carbon is less stable than other forms of carbon?
  1. It has a different number of protons than other forms of carbon.
  2. It is missing electrons.
  3. It is a compound.
  4. It has a different number of neutrons than other forms of carbon.
  5. It does not occur naturally.