meredith48034 meredith48034

23-07-2018
English

contestada

Cerium-144 is a radioactive isotope with a half-life of 285 days. How lonh would it take for an initial sample of 10 grams of Cerium-144 to decay until only 1 gram remains?

a. about 2850 days

b. about 513 days

c. about 947 days

d. about 855 days

Respuesta :

jackbauer11440 jackbauer11440

23-07-2018

The answer should be C, about 947 days.

Answer Link

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