Geography, 20.01.2021 02:20, hamnah83

A scientist kept 100 grams of a radioactive material in a container. After 280 days, he observed that 25 grams of the radioactive material was left in the container. Based on the observation, which of these is the most likely inference drawn by the scientist? (1 point) а The radioactive material will decay totally in 560 days.

b The radioactive material will decay totally in 840 days.

с About 50 grams of the material was left in the container after 70 days.

d About 50 grams of the material was left in the container after 140 days.

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A scientist kept 100 grams of a radioactive material in a container. After 280 days, he observed tha...

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