Sciencium-380 has a half-life of 3 days. If you started with a 100 gram sample, how much Sciencium-380 will remain after 9 days?

12.5 grams will remain.

Explanation:

The half life time means that if we start with a quantity A of a given subtance/material, after the half time we will have half that quantity, or A/2.

We know that the half life of Sciencium-380 is 3 days.

So if we have 100 grams, after 3 days we will have 100/2 = 50 grams.

After other 3 days we will have 50/2 = 25 grams

After other 3 days we will have 25/2 = 12.5 grams.

So if we start with 100 grams, after 9 days we will have 12.5 grams.

an energy transformation flow diagram is shown

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