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When a particle decays and spits off some alpha radiation why doesnt it take with it some of the electrons from its parent particle? I would expect the electrons to "stick" to the helium nucleus and travel with it.
I am guessing it is a matter of moment. The alpha particle flys off at such speed the resting moment of the electrons may make it so they cant follow it... but considering that electrons arent at "rest" and that they have very very little mass I question myself on this answer.
It doesn’t for the same reasons a bullet won’t be wet after you shoot it through a watermelon. The electrons would need to be sped up to high velocities to match the alpha, but there is very little time for them to interact with the alpha before it leaves the atom. They -will- get knocked around though, causing x rays or shake-off electrons.
