Question
Question: A radioactive decay chain starts from \(93Np^{237}\) and produces \(90Th^{229}\) by successive emiss...
A radioactive decay chain starts from 93Np237 and produces 90Th229 by successive emissions. The emitted particles can be.
A
Two α-particles and one β-particle
B
Three β+ particles
C
One α particle and two β+ particles
D
One α particle and two β− particles
Answer
Two α-particles and one β-particle
Explanation
Solution
By using nα=4A−A′ and nβ=2nα−Z+Z′