Consider an α particle is just in contact with a U(Z=92 A=238). Calculate the repulsion energy (i.e. the height bof the columbic barrier between U238 and α-particle) asuming that the distance between them is equal to the sum of their radii.

Dear student,

U(rep)=-[E(diss)+deltaE+Ue], where delta E is the dissociation energy minus the electron affinity

Ue=-(ke^2)/r

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