If a radioactive substance has a half-life of 9 days what fraction of its original mass would remain after 27 days? *

If the substance has a half-life of 9 days, that means that after 9 days, half of it will be left. So, after 18 days, one-fourth will be left. And after 27 days, 1/8 would be left. It's kind of like an exponential function, if that helps.

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mahima6824soni mahima6824soni · Answer 2 · 2022-06-10T07:02:39+02:00

If a radioactive substance has a half-life of 9 days, the fraction of its original mass that would remain after 27 years will be 1/8.

What is half-life?

Half-life is the time when a radioactive substance is decayed half.

If the radioactive substance has a half-life of 9 day. It means it will be decayed half after 9 days. The radioactive substance will be 1/4 decayed in 18 days. The substance will be 1/8 decayed in 27 days.

Thus, the correct option is 1/8 days.

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