90234Th⟶−β91234X⟶−β92234Th−−α90230Th
JEE Main 2003 — Chemistry Inorganic Chemistry
The radionucleide 90234Th undergoes two successive β-decays followed by one α-decay. The atomic number and the mass number respectively of the resulting radionucleide are
Held on 30 Apr 2003 · Verified 6 Jul 2026.
94 and 230
90 and 230
92 and 230
92 and 234
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