Can anybody EXPLAIN this to me?

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During the transformation of the thorium isotope 232

90Th into an isotope of radon (Rn),

a total of three α-particles and two β-particles are emitted. Determine the nucleon number

and proton number of the isotope of radon.

Posted Sun 3rd March, 2013 @ 13:24 by Ash

1 Answer

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Ok, so a=alpha particles, and the b sign= beta. An Alpha particle is a helium nucleus. A Beta particle is a negative electron. The 'nucleon' number is basically 232 minus 90 I think. Hope this helps x

Answered Sun 3rd March, 2013 @ 15:19 by Crystal Blue ♥