2 years ago

The half-life of cobalt-60 (used in

Mathematics

1 answer:

Likurg_2 [28]2 years ago

5 0

Answer:

6.25 gm left

Step-by-step explanation:

Find the number of half lives in 26.3 years

26.3 / 5.26 = 5 half lives

(1/2) ^5 = 1/32 nd of the original will be left

1/32 * 200g = 6.25 gm left

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