Question

What is the potential energy of an electron and proton in a hydrogen atom if the distance between them is 5.3*10^-11?
ANSWER
k=9*10^9
Q=1.6*10^-19
q=1.6*10^19
Ue=?
Ue=KQq/r
Ue=-4.4*10^-18 j

Answer 1

9e9*1.6e-19*1.6e-19/5.3e-11=you are correct