The half-life of $A{u}^{198}$ is 2.7 days. The activity of 1.50mg of $A{u}^{198}$ if its atomic weight is 198$gmo{l}^{-1}$ is, (${N}_{A}=6\times {10}^{23}/mol$) [JEE Main 2021, 16 Mar (Shift 2)]

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The half-life of \(A{u}^{198}\) is 2.7 days. The activity of 1.50mg of \(A{u}^{198}\) if its atomic weight is 198\(gmo{l…

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