NEET UG 2019 · Physics · Question 31
NEET 2019 Physics, question 31
Question 31 of the NEET 2019 paper (code P1) is a Physics question from Nuclei. Its idea, Composition of Alpha Particles, was asked only this once in NEET 2017–2026. The NTA final answer key gives option 1.
Updated 2026-10-08
Q31 · Physics
α-particle consists of :
- 12 protons and 2 neutrons onlyOfficial answer
- 22 electrons, 2 protons and 2 neutrons
- 32 electrons and 4 protons only
- 42 protons only
Official answer: option 1 · NTA final answer key
Same idea
The only question on Composition of Alpha Particles
No other NEET paper from 2017–2026 tested this exact idea.
Composition of Alpha Particles: 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.