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A radioactive isotope has a decay constant of 10-6s-1.

A radioactive isotope has a decay constant of 10-6s-1.
Calculate its half - life?

A.

5.93 x 106s

B.

6.93 x 105s

C.

6.93 x 109s

D.

5.93 x 107s

View answer & explanation

Correct answer is B

t1/2 = 0.693γ = 0.69310−6

= 6.93 x 105

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