Chemistry, asked by vickysmilevick9819, 11 hours ago

Activity of a radioactive element decreased to one third of original activity i 0 in 9 years. After further 9 years. Its activity will be

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Answered by munnamanisha17

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The activity of a radioative element decreases to one third of the original activity I_(0) in a period of nine years. After a further 1apse of nine years, its activity will be. ∴At0=(13)2=19 or A=t09.

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