Gallium-68 decays by positron emission with a half-life of
Gallium-68 decays by positron emission, with a half-life of 68.3 min. How much 68Ga remains from a 10.0 mg sample after 683 min?
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gallium-68 decays by positron emission with a half-life of 683 min how much 68ga remains from a 100 mg sample after 683
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