Q. Alpha particle is the nucleus of an atom of__:
Answer: Helium
Notes: Alpha particles (₂He⁴) consist of two protons and two neutrons bound together into a particle identical to a helium nucleus, which is generally produced in the process of alpha decay. These particles travelling with 10% of velocity of light cause ionization.

This question is part of 40000+ General Studies MCQ Series Course on GKToday Android app. Question Number: 51 in Physics GK 23 - Atomic and Nuclear Physics Basics in above course in App.