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Racer Eight (guessmusic)
Race Number 237
Date Tue, 7 Mar 2017 16:12:13 +0000
Speed 69 WPM Try to beat?
Accuracy 96.8%
Rank 1st place (out of 5)
Opponents baryla69baryla69 (4th place) ignima (5th place) itsmemai (3rd place) yozj (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.
Structure and Bonding (Basic Concepts in Chemistry) (book) by Jack Barrett (see stats)