Chemistry, asked by raj3435, 11 months ago

Half life of a radioactive element is 5 years. The fraction of the element that remains after 20 years is

Answers

Answered by haridasan85

7

Answer:

5 yrs...... 1/2

lOyrs..... 1/4

I5 yrs. I/8

20 yrs. 1/16. Ans

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