A319901 List of elements whose electron configuration does not satisfy the Aufbau principle.
24, 29, 41, 42, 44, 45, 46, 47, 57, 58, 64, 78, 79, 89, 90, 91, 92, 93, 96, 103
Offset: 1
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.)
Links
- Wikipedia, Aufbau principle
- Wikipedia, Electron configuration.
- Wikipedia, Electron configurations of the elements (data page).
Crossrefs
Cf. A168208.
Comments