Which elements are used in Atomic Reactors to control the speed of neturons?
Boron and Iron
Sodium and Potassium
Boron and Cadmium
Cadmium and Aluminium
A
Boron and Cadmium
B
Cadmium and Aluminium
C
Boron and Iron
D
Sodium and Potassium
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Solution
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Control rods are used in nuclear reactors to control the fission rate of uranium or plutonium.
Their compositions include chemical elements such as boron, cadmium, silver, or indium, that are capable of absorbing many neutrons without themselves fissioning.
Hence, option A is correct.
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