The radioactive nuclide `._(90)^(234) Th` shows two successive `beta-` decay followed by one `alpha-` decay. The atomic number and mass number respect

The radioactive nuclide `._(90)^(234) Th` shows two successive `beta-` decay followed by one `alpha-` decay. The atomic number and mass number respect
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The radioactive nuclide `._(90)^(234) Th` shows two successive `beta-` decay followed by one `alpha-` ... is: A. 92234 B. 94230 C. 90230 D. 92230
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