Question

The fissionable material used in a breeder reactor is ________

• A. ${}_{92}{\text{U}}^{235}$
• B. ${}_{94}{\text{Pu}}^{239}$
• C. ${}_{90}{\text{Th}}^{234}$
• D. ${}_c{\text{C}}^{12}$

Answer 1

Answer: (B)

${}_{94}{\text{Pu}}^{239}$

Non-fissionable uranium-238 is 140 times more abundant than the fissionable U-235 and can be efficiently converted into Pu-239 by the neutrons from a fission chain reaction.