Asked by Anonymous

how many half lives will it take for 50 g of 99Tc to decay to 6.25 g?
Answered by DrBob222
Let n = number of half lives.

50/6.25 = 8
2^n = 8
n = ?
Answered by Anonymous
46
Answered by Anonymous
As-81 started as 100 g solution and was reduced by two half-lives.
Answered by Anonymous
As-81 started as 100 g solution and was reduced by two half-lives.
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