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JEE Main 2004
Exam
JEE Main
Year
2004
Subject
Chemistry
Chapter
Classification of Elements and Periodicity in Properties

JEE Main 2004 · Chemistry · Classification of Elements and Periodicity in Properties

Consider the following nuclear reactions aligned & _ 92 ^ 238 M...

Consider the following nuclear reactions 92238M→yxN+24HeyNN→BAL+2β+\begin{aligned}& { }_{92}^{238} \mathrm{M} \rightarrow{ }_{\mathrm{y}}^{\mathrm{x}} \mathrm{N}+{ }_2^4 \mathrm{He}\\ & { }_{\mathrm{y}}^{\mathrm{N}} \mathrm{N} \rightarrow{ }_{\mathrm{B}}^{\mathrm{A}} \mathrm{L}+2 \beta^{+} \end{aligned}The number of neutrons in the element LL is

Options

  1. A142
  2. B146
  3. C140
  4. D144

Correct answer

D. 144

Step-by-step solution

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