The half-life of strontium- $90$ is $25$ years. How long will it take for a $12 \mathrm { mg }$ sample to decay to a mass of $8$ mg?

Name: The half-life of strontium- $90$ is $25$ years. How long will it take for a $12 \mathrm { mg }$ sample to decay to a mass of $8$ mg?
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The Answer of The half-life of strontium- $90$ is $25$ years. How long will it take for a $12 \mathrm { mg }$ sample to decay to a mass of $8$ mg?

The Half-Life of Strontium- 909090 Is 252525 Years How Long Will It Take for A How

The Half-Life of Strontium- $90$ Is $25$ Years How Long Will It Take for A How