Answered: Strontium-89 is a radioactive isotope… | bartleby

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Strontium-89 is a radioactive isotope of strontium, with symbol 3gSr. It
decays via beta-minus decay to an isotope of yttrium, symbol Y.
(a) Name the particle that is ejected from the nucleus in addition to
an electron.
(b) Write down the equation for the decay process.
(c) Explain in words the change of the quark composition in the
nucleus of the decaying atom.

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