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← ScienceWhich instability arises when heavy isotopes experience reduced stability?
A)Spontaneous nuclear fission✓
B)Increased beta emission
C)Enhanced electron capture
D)Augmented alpha decay
💡 Explanation
Spontaneous nuclear fission predominates as heavy isotopes become unstable because Coulomb repulsion overcomes the strong nuclear force; therefore fission occurs rather than alpha or beta decay because they need specific particle configurations.
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