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. The half-life of a radioactive element in 5 years. The
fraction of the radioactive substance that remains after 20
years is

(a) ½

(b) ¼

(c) 1/8

(d) 1/16



. The half-life of a radioactive element in 5 years. The fraction of the radioactive substance that..

Answer / guest

(d) 1/16

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