Question

The neptunium series involves the nuclear decay of, amongst others, neptunium-237 into thallium-205. If this series begins with the following set of emissions, write the seven decay processes that represent this sequence.

1 α emission, 1 β⁻ emission, 2 α emissions, 1 β⁻ emission, 2 α emissions

Assume that the processes occur in the exact order described above.

????---decay process (1)

decay process( 2)

?????

decay process(3)

????

decay process (4)

????

decay process (5)

??

decay process (6)

???

decay process (7)

Answer 1