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Assuming that the wavefunction is constant within the volume, the radius (in pm) at which the probability of finding an electron in 1pm3 volume in a 1s orbital of He+ion falls to 54.2% of its maximum value is nearly: Wavefunction of 1s orbital of a hydrogenic atom is given in Useful Information. Select one: 8.102 32.40 105.61 6.12 The correct answer is: 8.10