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Racer Jarred Badillo (dogfart)
Race Number 199
Date Sat, 20 Aug 2016 05:58:43 +0000
Speed 92 WPM Try to beat?
Accuracy 96.8%
Rank 2nd place (out of 3)

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.
Structure and Bonding (Basic Concepts in Chemistry) (book) by Jack Barrett (see stats)