There are 37 known isotopes of iodine, but only one, 127I, is stable. Of the two iodine isotopes, 136I and 122I, one decays by b decay and one decays by positron emission. Which is which? Explain.

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Chapter21: Chemistry Of The Main-group Elements
Section: Chapter Questions
Problem 21.95QP: Francium was discovered as a minor decay product of actinium-227. Write the nuclear equation for the...
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  1. There are 37 known isotopes of iodine, but only one, 127I, is stable. Of the two iodine isotopes, 136I and 122I, one decays by b decay and one decays by positron emission. Which is which? Explain.

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