# Problem: Click on an arrow that represents one of the alpha decays in the decay series of U-235.

###### FREE Expert Solution

We’re being asked to identify the arrow that represents one of the alpha decays for 235U.

Recall that in a nuclear reaction, the number of protons and neutrons are affected and the identity of the element changes. For alpha decay, an alpha particle (42α, atomic mass = 4, atomic number = 2) is formed as a product.

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###### Problem Details

Click on an arrow that represents one of the alpha decays in the decay series of U-235.