After uranium emits an alpha particle, it should build up a negative charge.But this doesn't happen.Why?

Question

Also, an element emiting a beta particle must develop positive charge. This doesnt happen too...

Answer 1

uranium, a radioactive element does not emit only alpha particle, it also emits beta and Gama particles, all with positive charge, when all emission ends, Uranium turns into Lead. That does not happen as the nomenclature of Uranium keeps on changing with lesser atomic weight till the end.

Answer 2

Both your previous answers are completely wrong.

There is indeed a charge imbalance after an alpha decay, and the resulting thorium atom will indeed have two extra orbital electrons (ie it will be a doubly negative charged ion).

This is not an energetically stable condition and so it will either give up these electrons to the alpha particles emitted (which are typically stopped by a few centimetres of air - almost all of the helium on Earth originates from alpha decay) or loses them by electron capture to other radicals later.

Answer 3

No it shouldn't. It is only neutral to begin with, because the charge on the orbiting electrons balances out the positive charge of the nucleus. Under the conditions of temperature under which nuclear fission occurs, those electrons have already floated off elsewhere anyway.
And as for B-emission, this occurs when a neutron decomposes into a proton and an electron, so the nucleus does in fact end up with one more positively charged nucleon.

Answer 4

Thorium i imagine. because the alpha particle has charge of two so it is going again on the periodic table 2 places. The mass decreases with assistance from 4 even if. The alpha particle a similar because the helium nucleus

Answer 5

along wuth the alpha particle it even emits an electron cso the atom neutralizes

Answer 6

No that's not true. Such charges does build up. But they are small enough so that this can't be used as a source of electricity.