Modern Physics 3 Question 31

32. When boron nucleus ${ } _5^{10} B$ is bombarded by neutrons, $\alpha$-particles are emitted. The resulting nucleus is of the element ……….. and has the mass number ….

(1986, 2M)

Show Answer

Solution:

  1. ${ } _5 B^{10}+{ } _0 n^{1} \rightarrow{ } _2 He^{4}+{ } _3 Li^{7}$ Therefore, resulting nucleus is lithium and its mass number is 7 .


जेईई के लिए मॉक टेस्ट

एनसीईआरटी अध्याय वीडियो समाधान

दोहरा फलक