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Maslowich
3 years ago
14

Element X is a radioactive isotope such that every 66 years, its mass decreases by half. Given that the initial mass of a sample

of Element X is 240 grams, how much of the element would remain after 29 years, to the nearest whole number?
Mathematics
2 answers:
Vlada [557]3 years ago
8 0

Answer:

177 grams

Step-by-step explanation:

Stels [109]3 years ago
5 0

Answer:

53grams... Approximated

Step-by-step explanation:

In 66 years = 240/2 = 120 grams

In 1 year = 120/66 gram

In 29 years = 120/66 × 29 = 52.73grams

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