Identify the missing nuclide/particle in the following nuclear reaction equations:
A) ²³⁸U → ²³⁴Th + X
B) ²¹⁸Po → ⁰β^- + Y
C) ²⁰⁶Hg → ²⁰⁶Tl + Z
D) ²¹⁰Po → α + Y

• A. α; ²¹⁸At; α; ²⁰⁶Pb
• B. α; ²¹⁸At; β; ²⁰⁶Pb
• C. β; ²¹⁸Rn; β; ²⁰⁶Pb
• D. α; ²¹⁸Rn; β; ²⁰⁶Bi

Answer: (B)