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typeracer

Pit Stop
Racer Chris (thrash3r)
Race Number 1240
Date Wed, 27 Aug 2014 19:33:43
Speed 92 WPM Try to beat?
Accuracy 91%
Rank 3rd place (out of 3)
Opponents mearsy97 (1st 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)