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Racer Alfred (nguyenmanhcuong2905@gmail.com)
Race Number 176
Date Thu, 4 Sep 2014 14:08:50
Speed 52 WPM Try to beat?
Accuracy 92.1%
Rank 3rd place (out of 4)
Opponents awesumii (1st place) thabaas (2nd 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)