Suppose that at one instant the electrons and the nucleus of a helium atom occup

Question

Suppose that at one instant the electrons and the nucleus of a helium atom occupy the positions shown below; at this instant, the electrons are at a distance of 2.0 x 10^-11 m from the nucleus. What is the electric potential energy of this arrangement? Treat the electrons and the nucleus as point charges.

Suppose that at one instant the electrons and the nucleus of a helium atom occupy the positions shown below; at this instant, the electrons are at a distance of 2.0 x 10^-11 m from the nucleus. What is the electric potential energy of this arrangement? Treat the electrons and the nucleus as point charges.

Explanation / Answer

U=2kq1q2/r=2*9*109*1.6*10-19*2*1.6*10-19/2*10-11=4.608*10-17J=288eV

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