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Friday, 9 October

NEET UG 2022 · Physics · Question 5

NEET 2022 Physics, question 5

Question 5 of the NEET 2022 paper (code R1) is a Physics question from Nuclei. Its idea, Beta Plus Decay Mechanism, was asked only this once in NEET 2017–2026. The NTA final answer key gives option 4.

Updated 2026-10-08

Q5 · Physics

In the given nuclear reaction, the element X is :

1122Na→X+e++ν\mathrm{^{22}_{11}Na \to X + e^{+} + \nu}

  1. 11222Mg\mathrm{^{22}_{12}Mg}
  2. 21123Na\mathrm{^{23}_{11}Na}
  3. 31023Ne\mathrm{^{23}_{10}Ne}
  4. 41022Ne\mathrm{^{22}_{10}Ne}Official answer

Official answer: option 4 · NTA final answer key

Same idea

The only question on Beta Plus Decay Mechanism

No other NEET paper from 2017–2026 tested this exact idea.

Beta Plus Decay Mechanism: every question and how it was framed

The chapter

Nuclei in ten years of NEET

13 questions from 2017–2026, asked in 9 of 10 papers, about 1.2 a paper. Radioactive Decay alone had 9.

Chapter analysisStudy this chapterPractise this chapter

Nuclei: questions per paper

0241’171’181’192’203’212’221’231’240’251’26