A freshly isolated sample of 90Y was found to have an activity of 9.8 x 105 disintegrations per minute at 1.00Pm on December 3, 1992. At 2:15 PM on December 17, 1992, its activity was predetermined and found to be 2.6 x 104 disintegrations per minute. Calculate thee half-life of 90Y.

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Q: A freshly isolated sample of 90Y was found to have an activity of 2.5 ×105 disintegrations per…

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Writing and Balancing Nuclear Equations

A nuclear equation is a symbolic representation of a nuclear reaction using certain symbols. It is studied in nuclear chemistry and nuclear physics.