α-particle consists of :

1. 2 protons and 2 neutrons only

2. 2 electrons, 2 protons and 2 neutrons

3. 2 electrons and 4 protons only

4. 2 protons only

Doubtly Asked 30 Oct 2026 NEET UG 2019 Practice test neet Save WhatsApp Report

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Answer: 1. 2 protons and 2 neutrons only

An \(\alpha\)-particle is the nucleus of a helium atom, \(^4_2\mathrm{He}\): 2 protons and 2 neutrons, with no electrons.

Doubtly AI · 30 Oct 2026 AI-generated · not yet verified Report

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