Physics, 08.11.2019 00:31, jaiyaharoldjh

Calcium-51 has a half-life of 4.5 days. only 0.75 gram remains of a sample that was initially 12 grams. how old is the sample of calcium-51?

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Calcium-51 has a half-life of 4.5 days. only 0.75 gram remains of a sample that was initially 12 gra...