The following decays make up the thorium decay series (the X \'s are unknowns fo

Question

The following decays make up the thorium decay series (the X's are unknowns for you to identify):232ThX1,228Ra228Ac,X2228Th,228ThX3224Ra,224Ra220Rn,220RnX4,X5212Pb and 212PbX6212Bi. The 212Bi then decays by an decay and a decay, which can occur in either order ( followed by or followed by ).

Part A

Identify X1.

Identify .

Part B

Identify X2.

Part C

Identify X3.

Identify .

Part D

Identify X4.

Identify .

Part E

Identify X5.

Identify .

Part F

Identify X6.

Identify .

Explanation / Answer

Part A)    X1   -    22888Ra

Part B )   X2   -   22889Ac

Part C) X3    -    ?

Part D)    X4   -    21684Po

Part E )   X5   -   21684Po

Part F)   X6    -    ??

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