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Posted by on Monday, May 30, 2011 at 8:48pm.

which of the following 10 g samples will decay the most in 28 days?
a.P-32
b.Kr-85
c.Fr-220
I-131

the answer is c.Fr-220 but i want to know why, please help

  • Chemistry - , Monday, May 30, 2011 at 10:24pm

    Look up the half lives. The one with the shortest half live will decay the most.

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