error (leonhardeuler)

Race #4137

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Official speed 56.92 wpm (83.06 seconds elapsed during race)
Race Start December 5, 2011 12:58:28am UTC
Race Finish December 5, 2011 12:59:51am UTC
Outcome No win (1 of 1)
Accuracy 83.0%
Points 0.00
Text #105 (Length: 394 characters)

The treatment of atoms with more than one electron requires consideration of the effects of interelectronic repulsion, orbital penetration towards the nuclear shielding, and an extra quantum number which specifies the intrinsic energy of the electron in any orbital. All these considerations are necessary to allow construction of the modern form of the periodic classification of the elements.