A radioactive element has a half life of 200 days. The percentage of original activity remaining after 83 days is _____. (Nearest integer) (Given: antilog 0.125 | Chemical Kinetics — Chem-Mantra | Chem-Mantra

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Question

A radioactive element has a half life of 200 days. The percentage of original activity remaining after 83 days is _____. (Nearest integer) (Given: antilog 0.125 = 1.333, antilog 0.693 = 4.93)

Answer: 75

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