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typeracer

Pit Stop
Racer Lok (nglok)
Race Number 1748
Date Tue, 19 May 2015 1:45:07
Speed 52 WPM Try to beat?
Accuracy 86.2%
Rank 5th place (out of 5)
Opponents jasonnross (1st place) jpngfile (2nd place) pepengcute@gmail.com (3rd 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)