Thorium-232 is an a emitter with 14-billion-year half-life. Radium-228 is a ? - emitter with 5.75-year half-life.

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Thorium-232 is an a emitter with 14-billion-year half-life. Radium-228 is a ?- emitter with 5.75-year half-life. Actinium-228 is a ?- emitter with 6.13-hour half-life.(a) What?s the third daughter in the thorium-232 decay series?(b) Make a chart similar to Fig. 38.7 showing the first three decays in the thorium series.

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Essential University Physics

ISBN: 978-0321976420

3rd Edition Volume 2

Authors: Richard Wolfsonby

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