Cobalt-60, used in the radiation treatment of cancer,Is produced by absorption of 2 neutrons and emission of a $\beta$particle.What is the starting nuclide?

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Cobalt-60 is produced from iron (Fe) by the absorption of 2 neutrons and the emission of a beta particle. This process increases the neutron count by 2 and decreases the atomic number by 1 (due to the conversion of a neutron to a proton during beta decay), starting from iron to end up with cobalt-60.

Cobalt-60, Used in the Radiation Treatment of Cancer,Is Produced by Absorption