Nuclear transmutation process

Classical Mechanics Level 2

The above diagram shows the changes in the mass number and number of proton when an atomic nucleus A ( 92 238 U ) \text{A}( _{ 92 }^{ 238 }{ U } ) becomes E ( 92 235 U ) \text{E}( _{92 }^{ 235}{ U } ) by the nuclear transmutation process A → B → C → D → E. \text{A } \rightarrow \text{B } \rightarrow \text{C } \rightarrow \text{D } \rightarrow \text{E.} Which of the following is true?

All of these choices A neutron is emitted in the process A → B . \text{ in the process } A \rightarrow B. A proton is emitted in the process B → C . \text{ in the process } B \rightarrow C. 2 neutrons are emitted in the process D → E . \text{ in the process } D \rightarrow E.

Srinivasa Satti by Srinivasa Satti

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1 solution

Process A → B A\rightarrow B does not increase in mass number but atomic number by 1 indicates addition of an electron. Increase in mass numbers by 2 in B → C → D B\rightarrow C \rightarrow D indicates that 2 neutrons are added. Finally, the drop in mass number by 2 in D → E D\rightarrow E indicates 2 n e u t r o n s a r e e m i t t e d \boxed {2\space neutrons\space are\space emitted} .

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