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An atom of the element of atomic number 84 and mass number 199 emits an alpha particle. The residual atom after this change has an atomic number of ___ and a mass number of ___.
(A) 82, 195
(B) 84, 203
(C) 85, 195
(D) 86, 199
A nuclide undergoes α decay and forms 110I. What is the nuclide?
An atom of the element of atomic number 84 and mass number 199 emits an alpha ...
What is the daughter nucleotide produced when Po-218 undergoes alpha decay
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