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November 29, 2014

Posted by **Jessie** on Tuesday, April 19, 2011 at 8:35pm.

I know that there are 6 alpha decays happening. I just do not get the beta decay part.

- chemistry (NEED HELP) -
**DrBob222**, Tuesday, April 19, 2011 at 10:13pm88Ra227 ==> 2He4 + ?X?

227-203 = 24; therefore, the number of 2He4 must be 6 since 6x4 = 24. That lets us assign ?values to X. The number of protons must be 88-12 = 76 which is Os so the full equation with alpha particles is

88Ra227 --> 6*2He4 + 76Os203. Now to assign the beta particles.

We want to go from element 76 to element 82; therefore, we need 82-76 = 6. Then

76Os203 ==> 6*-1e0 + 82Pb203

- chemistry (NEED HELP) -
**Jessie**, Tuesday, April 19, 2011 at 11:01pmTHANK YOU SO MUCH

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