Question

What are alpha particles

Answer 1

Alpha particle :
Alpha particles consist of two protons and two neutrons bound together into a particle identical to a helium-4 nucleus. 

Composition: 2 protons, 2 neutrons

Symbol: α, He²⁺, α²⁺

Mass:4.001506179125(62) u, 3.727379240(82) GeV/c²

Answer 2

positively charged particles are called as alpha paticle.

He2+ is positively charged particle of helium which was used by rutherford in his gold foil experiment and he discovered positively chaged partiles called protons