Modern Physics 5 Question 17

18. The correct statement is

(a) The nucleus 36Li can emit an alpha particle.

(b) The nucleus 84210 Po can emit a proton.

(c) Deuteron and alpha particle can undergo complete fusion.

(d) The nuclei 3070Zn and 3482Se can undergo complete fusion.

Show Answer

Answer:

Correct Answer: 18. (b)

Solution:

  1. (a) 3Li72He4+1H3

Δm=[MLiMHeMH3]=[6.015134.0026033.016050]=1.003523u

Δm is negative so reaction is not possible.

(b) 84Po21083Bi209+1P1

Δm is negative so reaction is not possible.

(c) 1H22He4+3Li6

Δm is positive so reaction is possible.

(d) 30Zn70+34Se8264Gd152

Δm is positive so reaction is not possible.



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