Answer:
First Reaction:
[tex]^{234}U[/tex] => [tex]^{230} Th + ^{4}He[/tex]
Second Reaction:
[tex]^{230} Th[/tex] => [tex]^{226} Ra + ^{4}He[/tex]
Combined Reaction:
[tex]^{234} U[/tex] => [tex]^{226}Ra + 2( ^{4} He)[/tex]
