cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A319901 List of elements whose electron configuration does not satisfy the Aufbau principle.

Original entry on oeis.org

24, 29, 41, 42, 44, 45, 46, 47, 57, 58, 64, 78, 79, 89, 90, 91, 92, 93, 96, 103
Offset: 1

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Author

Jianing Song, Sep 30 2018

Keywords

Comments

Possibly full, but if some period 8 elements were synthesized there may be a lot more terms.

Examples

			...Element.....Atomic number...EC by Aufbau principle.......Actual EC....
Chromium.............24............[Ar]3d4 4s2..........[Ar]3d5 4s1
Copper...............29............[Ar]3d9 4s2..........[Ar]3d10 4s1
Niobium..............41............[Kr]4d3 5s2..........[Kr]4d4 5s1
Molybdenum...........42............[Kr]4d4 5s2..........[Kr]4d5 5s1
Ruthenium............44............[Kr]4d6 5s2..........[Kr]4d7 5s1
Rhodium..............45............[Kr]4d7 5s2..........[Kr]4d8 5s1
Palladium............46............[Kr]4d8 5s2..........[Kr]4d10
Silver...............47............[Kr]4d9 5s2..........[Kr]4d10 5s1
Lanthanum............57............[Xe]4f1 6s2..........[Xe]5d1 6s2
Cerium...............58............[Xe]4f2 6s2..........[Xe]4f1 5d1 6s2
Gadolinium...........64............[Xe]4f8 6s2..........[Xe]4f7 5d1 6s2
Platinum.............78............[Xe]4f14 5d8 6s2.....[Xe]4f14 5d9 6s1
Gold.................79............[Xe]4f14 5d9 6s2.....[Xe]4f14 5d10 6s1
Actinium.............89............[Rn]5f1 7s2..........[Rn]6d1 7s2
Thorium..............90............[Rn]5f2 7s2..........[Rn]6d2 7s2
Protactinium.........91............[Rn]5f3 7s2..........[Rn]5f2 6d1 7s2
Uranium..............92............[Rn]5f4 7s2..........[Rn]5f3 6d1 7s2
Neptunium............93............[Rn]5f5 7s2..........[Rn]5f4 6d1 7s2
Curium...............96............[Rn]5f8 7s2..........[Rn]5f7 6d1 7s2
Lawrencium..........103............[Rn]5f14 6d1 7s2.....[Rn]5f14 7s2 7p1
(EC = electron configuration.)
		

Crossrefs

Cf. A168208.