Explain the atomic weight of the unknown element

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Reference no: EM13524148

50.% of the distintegrations of a sample of an unknown pure nuclide weighing 4.6 X 10-2 g were counted. In the first half-life of the sample, the total number of disintegrations counted was 2.15 X 1020 . What is the atomic weight of the unknown element?

Reference no: EM13524148

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