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I have been working on this problem for a while now, and it's supposed to be really simple, but I can't get the solution can you sort of guide me through this problem, and show me the equations you used?

Problem: A radioactive sample containing 1.35 x 10¹⁷ nuclei has activity 2.57 x 10¹² Bq.

A- What is this nuclide half-life?

Please keep answer short and simple and please no copy and paste.

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Category:- Physics
Reference No.:- M91230899

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