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← ScienceWhich mechanism causes alpha particle emission in plutonium?
A)Quantum mechanical tunneling✓
B)Spontaneous fission propagation
C)Neutron-induced nuclear decay
D)Electrostatic barrier minimization
💡 Explanation
Alpha particles within the nucleus overcome the strong nuclear force through quantum mechanical tunneling, allowing them to escape despite lacking sufficient energy because the wave function penetrates the potential barrier, therefore emission happens via tunneling, rather than classical escape alone.
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