E=mc^2 .... What is the mass of a alpha particle? I want to find out the energy it possesses...?

Question

but before I can find out I need to find the mass defect. What is the mass of uranium 238? And the mass of Thorium 234?

Answer 1

The alpha particle mass is 6.644656×10-27 kg, which is equivalent to the energy of 3.72738 GeV. The charge of an alpha particle is equal to +2e, where e is the magnitude of charge on an electron, e=1.602176462x10-19C.

Uranium= 238.0507826 u

Thorium= 234.043601 grams/mole