question_answer

A radioactive reaction is\[_{92}{{U}^{238}}{{\to }_{82}}P{{b}^{206}}\]. How many \[\alpha \]and \[\beta \]particles are emitted [BHU 1995; CET 1998; RPET 1996; BHU 2000; AMU (Engg.) 2000]

A)            \[10\alpha ,\ 6\beta \]     

B)            4 protons, 8 neutrons

C)            6 electrons, 8 protons      

D)            \[6\beta ,\ 8\alpha \]