Select the nuclide that completes the following nuclear reaction. 216 84 Po ? ?

Question

   Select the nuclide that completes the following nuclear reaction. 21684Po  ?     ?  +  42He            Answer                                                   a.               22082Pb                                        b.               22086Rn                                        c.               12252Te                                        d.               21282Pb                                        e.               21886Rn               Select the nuclide that completes the following nuclear reaction. 21684Po  ?     ?  +  42He               Select the nuclide that completes the following nuclear reaction. 21684Po  ?     ?  +  42He            Select the nuclide that completes the following nuclear reaction. 21684Po  ?     ?  +  42He 21684Po  ?     ?  +  42He    22082Pb            22082Pb    22086Rn            22086Rn    12252Te            12252Te    21282Pb            21282Pb    21886Rn            21886Rn                             a.               22082Pb                                        b.               22086Rn                                        c.               12252Te                                        d.               21282Pb                                        e.               21886Rn           

Explanation / Answer

Answer is D. Polonium 216 emits an alpha particle or He4 to form Pb-212 which is lead isotope and for additional information it leads to heart and lung cancer.

It is obtained by balancing both side of equations with their atomic number and mass number.

84=x+2

x=82

216=y+4

y=212

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