Which limitation will eventually occur in a long-lived Rubidium-82 generator used for PET scans?

💡 Explanation

Strontium-82, which decays to Rubidium-82, has a much longer half-life, so eventually its activity will outpace the decaying Rubidium-82 because it represents a limitation in the parent material; therefore activity levels invert, rather than other process limitations.

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