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Topic: half-life, can someone help me get started??!! urgent!  (Read 2536 times)

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Offline chiluvskk

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half-life, can someone help me get started??!! urgent!
« on: March 11, 2009, 06:11:22 PM »
a 5.4 µCi sample of ^226RaCl2 has a radioactivity of 1.5 x 10^5 Bq. Calculate the half-life of ^226Ra.


please give me as many hints as possible, i really don't know where to start! thanks in advance
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Offline ARGOS++

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Re: half-life, can someone help me get started??!! urgent!
« Reply #1 on: March 11, 2009, 07:02:10 PM »

Dear chiluvskk;

Are both links of some help to you? (I hope!):
     http://en.wikipedia.org/wiki/Becquerel
     http://en.wikipedia.org/wiki/Half-life#Formulae_for_half-life_in_exponential_decay

Good Luck!
                    ARGOS++
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