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[" Problem-5.25: The half- life of "^(23...

[" Problem-5.25: The half- life of "^(238)" U for a -decay is "],[4.5times10^(19)" years.How many disintegrations per second "],[" occur in Ig of "2380" ? "],[" (Avogadro's number "=6.023times10^(23)" mol'- "]

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