Explain undergoes decay by positron emission

Reference no: EM13156208

The isotope 172Ta undergoes decay by positron emission. After 2 hours , 1/6 of the initial amount of 172Ta remains undecayed. The half- life of the isotope is? a) 15 min b) 30 min c) 45 min d) 60 min e) 90 min

Reference no: EM13156208

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