When the Pd-106 nucleus is struck with an alpha particle,a proton is produced along with a new element.What is this new element?
A)Cd-112
B)Cd 109
C)Ag-108
D)Ag-109
E)none of these

Question

Quizplus · Accepted Answer

When an alpha particle (2 protons and 2 neutrons) strikes a Pd-106 nucleus, it can cause the Pd-106 nucleus to split into a lighter nucleus and a proton. This produces a new element with an atomic number that is one more than that of Palladium, which is 46. 
So, the new element produced would have atomic number 47, which corresponds to the element silver (Ag). Among the given options, only option D (Ag-109) has atomic number 47 and therefore is the correct answer.

When the Pd-106 Nucleus Is Struck with an Alpha Particle,a