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NEET 2020
Exam
NEET
Year
2020
Subject
Physics
Chapter
Nuclear Physics

NEET 2020 · Physics · Nuclear Physics

When a uranium isotope U 92235 is bombarded with a neutron, it...

When a uranium isotope U92235U 92235 is bombarded with a neutron, it generates Kr3689Kr 3689, three neutrons and:

Options

  1. AZr4091Zr 4091
  2. BKr36101Kr 36101
  3. CKr36103Kr 36103
  4. DBa56144Ba 56144

Correct answer

D. Ba56144Ba 56144

Step-by-step solution

Let mass number & atomic number of the unknown element be A & Z.

A = 235−89−(3×1)=143235 - 89 - ( 3 \times 1 ) = 143

Z = 92−36=5692 - 36 = 56

Hence, the element must be Barium.

U92235+01n→Kr3689+Ba56144+301n+QU 92235 {+}_{0}^{1}n \to Kr 3689 + Ba 56144 + {3}_{0}^{1}n + Q

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