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A neutron causes 23290Th90232Th to change according to the following reaction: 10n+23290Th?AZX+?01n+90232Th?ZAX+? The AZXZAX nucleus subsequently...

A neutron causes 23290Th90232Th to change according to the following reaction: 10n+23290Th?AZX+?01n+90232Th?ZAX+?
The AZXZAX nucleus subsequently undergoes ???? decay, and its daughter does too. What is the atomic number of the final nucleus?

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