Well the charge of an electron is a constant, see bottom. The energy of an electron is higher if it is further from the nucleus as you say but this is due to it moving faster in orbit and the contribution of this kinetic energy. Electron's kinetic energy, KE = ½ mv2 = 13.6 eV. Higher energy level orbitals have electrons that are moving faster otherwise they could not keep from getting pulled into their same but oppositely charged protons in the nucleus. The answer is more complicated if we get into quantum mechanics.
1.60217646 × 10-19 coulombs.
1.60217646 × 10-19 coulombs.
