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According to the alpha-particle model of the nucleus, some nuclei consist of a regular geometric arrangement of alpha particles. For instance, the nucleus of12C consists of three alpha particles arranged in an equilateral triangle as shown below. Assuming that the distance between pairs of alpha particlesis 3.0 x 10'15 m, what is the electric potential energy of this arrangement of alpha particles? Treat the alpha particles as point-like particles with charge +2e. Express your answer in electron volts (eV)