Uranium-238 has a half-life of 4.46 billion years and is often analyzed
through radiometric dating to find the ages of rocks. U-238 decays in
a series that can be summarized by the equation shown below.
238 206 4 0
92.U 82 Pb + x He+ye
How many alpha particles, x, and how many beta particles, y, are
needed to balance the nuclear equation?
Select one
X = 8: y = 6
O
X = 4, y = 16
X = 5: y = 32
O
X = 16; y = 22