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typeracer

Pit Stop
Racer Stephen (17kisern)
Race Number 132
Date Wed, 11 Nov 2015 18:25:02
Speed 84 WPM Try to beat?
Accuracy 95.2%
Rank 2nd place (out of 5)
Opponents melmao12 (1st place) poconn (4th place) shoelegend88 (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)