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melamori03 [73]

3 years ago

12

Element X is a radioactive isotope such that every 28 years, its mass decreases by half. Given that the initial mass of a sample

of Element X is 50 grams, how much of
the element would remain after 11 years, to the nearest whole number?

1 answer:

Arada [10]3 years ago

3 1

Answer:

30 grams

Step-by-step explanation:

30 grams

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