The center of the atom, called the nucleus, can become unstable when there are too many protons or neutrons. This imbalance can cause the atom to release energy and particles, making it radioactive. A good rule for stability is that atoms with a balanced ratio of protons to neutrons tend to be more stable, while those with too many or too few neutrons compared to protons can become unstable.
In 5th grade response in 3 sentences Explore until you discover a good rule for making the center of the atom stable.
a. What seems to make the center of the atom unstable?
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