Phosphorus-32 is a beta emitter with a decay constant of 3,6x107 s'. For a particular application, the phosphorus-32 emits 2.0x10" beta particles every second. Determine a. The half-life of the phosphorus-32. b. The mass of pure phosphorus-32 will give this decay rate. (Given the Avogadro constant, NA =6.02 ' 1023 mol·')
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