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Which outcome increases within a sample containing unstable isotopes?

A)Probability of radioactive decay events
B)Overall specific heat capacity value
C)Material resistance against tensile stress
D)Tendency to form crystalline structures

💡 Explanation

Radioactive decay increases with unstable isotopes because it undergoes nuclear transmutation via quantum tunneling, rather than remaining stable. Therefore, decay probability increases; rather than specific heat changes, which relies on kinetic energy.

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