Why aren't the daughter isotopes of alpha decay charged?

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For example, when a radioactive isotope of Uranium undergoes alpha decay, a radioactive isotope of Thorium is formed. Why isn't this daughter isotope charged?
 
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In principle it is charged, but a couple of extra electrons come and go very easily, especially in a metal.

As soon as the 2+ alpha particle slows down it will pick up 2 electrons and become a normal neutral Helium atom.

So the overall charge balance is neutral. The U come Th looses 2 electrons, and the alpha picks up two.
 

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