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typeracer

Pit Stop
Racer Samuel (sonicst)
Race Number 434
Date Fri, 22 Nov 2013 21:51:05
Speed 47 WPM Try to beat?
Accuracy 87.6%
Rank 2nd place (out of 5)
Opponents clownhonk (1st place) eliseallen (3rd place) simpkinsa2 (4th place)

Text typed:

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.
— (book) by Jack Barrett (see stats)