If we start with 1.000 g of cobalt-60, 0.675 g will remain after 3.00 yr. This means that the half-lifeof cobalt-60 is __________ yr.

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Nuclear chemistry is a branch of chemistry that studies radioactivity, nuclear processes, and changes in the nuclei of atoms.


If we start with 1.000 g of cobalt-60, 0.675 g will remain after 3.00 yr. This means that the half-lifeof cobalt-60 is __________ yr.