NEET UG 2020 · Chemistry · Question 124
NEET 2020 Chemistry, question 124
Question 124 of the NEET 2020 paper (code E1) is a Chemistry question from Structure of Atom. Its idea, Atomic Number, Mass Number and Particle Counts, was asked only this once in NEET 2017–2026. The NTA final answer key gives option 1.
Updated 2026-10-08
Q124 · Chemistry
The number of protons, neutrons and electrons in , respectively, are :
- 171, 104 and 71Official answer
- 2104, 71 and 71
- 371, 71 and 104
- 4175, 104 and 71
Official answer: option 1 · NTA final answer key
Same idea
The only question on Atomic Number, Mass Number and Particle Counts
No other NEET paper from 2017–2026 tested this exact idea.
Atomic Number, Mass Number and Particle Counts: every question and how it was framed
The chapter
Structure of Atom in ten years of NEET
16 questions from 2017–2026, asked in 10 of 10 papers, about 1.5 a paper. Quantum Numbers alone had 16.