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when an alpha particle is releaseed then what happens to the extra electrons remaining in the atom? e.g when uranium-92 release an alpha particle then it is converted to thorium-90 which normally has 90 electrons but when it is transmutated from uranium then it has 92 electrons.If the process continues in the same manner then the charge on that atom will keep on increasing coninuously.How can the element obtained be a normal one