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typeracer

Pit Stop
Racer Ted on Norman (norted)
Race Number 1041
Date Sun, 23 Feb 2014 0:32:53
Speed 90 WPM Try to beat?
Accuracy 96.1%
Rank 3rd place (out of 4)
Opponents camere (1st place) fondadonchon (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)