A sample contains 92% stable 40 Ar and 8 % unstable 39 Ar. The half life...

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science physics

Answer 1

Answer #1

Ammount of unstable 39 Ar is 8% of lg = 0.08.g. No. of nucleus of 39 Ar in 0.08g is = 0.08. - 39 x 6.02x1023 = 1,2358102 nucl

Answer 2

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