learning bone layout (plexigras)

Race #1401

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Official speed 51.78 wpm (91.31 seconds elapsed during race)
Race Start February 18, 2018 1:27:24pm UTC
Race Finish February 18, 2018 1:28:55pm UTC
Outcome Win (1 of 4)
Accuracy 96.0%
Points 50.05
Text #105 (Length: 394 characters)

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.