3 years ago

You have 88 grams of a radioactive kind of actinium. How much will be left after 44 years if its half-life is 22 years?

Mathematics

1 answer:

mash [69]3 years ago

3 0

Answer:

22 grams

Step-by-step explanation:

loses 50% of it's mass per 22 years

so after 22 years the mass would be 44 grams

22 years later would leave 50% of 44 grams = 22 grams

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