Question

A radioactive nucleus $_{Z}^{A}\textrm{X}$ undergoes spontaneous decay in the sequence _{Z}^{A}\textrm{X}$$\rightarrowZ-1B$\rightarrow$Z-3C$\rightarrow$Z-2D, where Z is the atomic number of element X. The possible decay particles in the sequence are

• A. β−, α, β+
• B. α, β−, β+
• C. α, β+, β−
• D. β+, α, β−

Answer 1

Answer: (D)

β+, α, β−

Answer 2

The correct answer is option (D): β+, α, β−