Question

What is the alpha particles .?

Answer 1

alpha particle is a doubly charged helium atom which has positive charge

Answer 2

Hello friend...
* Alpha particles are helium ions (He2+)[2 protons, 2 neutrons and no electrons].
* The mass of an alpha particles is 8000 times the mass of electrons.
* Velocity of an alpha particle is
$2 \times 10 {}^{7}$m/s
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