4f Elements in Periodic Table
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Table 4693a. 4f elements in periodic table

1S 2s 3s 4s 5s 6s 7s 2p 3p 4p 5p 6p 3d 3d 4d 5d 6d 4f 5f Elements Structure of the periodic table


Table 4693b. Electron configurations, filling orbitals, and valence electrons of 4f elements

Atomic Number Symbol Name Electron Configuration Filling Orbital Valence Electrons
57 La Lanthanum  1s2 2s2p6 3s2p6d10 4s2p6d10 5s2p6d1 6s2  5d1 5p16s2 
58 Ce Cerium  1s2 2s2p6 3s2p6d10 4s2p6d10f1 5s2p6d1 6s2 4f2 4f26s2
59 Pr Praseodymium  1s2 2s2p6 3s2p6d10 4s2p6d10f3 5s2p6 6s2 4f3 4f36s2
60 Nd Neodymium  1s2 2s2p6 3s2p6d10 4s2p6d10f4 5s2p6 6s2 4f4 4f46s2
61 Pm Promethium  1s2 2s2p6 3s2p6d10 4s2p6d10f5 5s2p6 6s2 4f5 4f56s2
62 Sm Samarium  1s2 2s2p6 3s2p6d10 4s2p6d10f6 5s2p6 6s2 4f6 4f66s2
63 Eu Europium  1s2 2s2p6 3s2p6d10 4s2p6d10f7 5s2p6 6s2 4f7 4f76s2
64 Gd Gadolinium  1s2 2s2p6 3s2p6d10 4s2p6d10f7 5s2p6d1 6s2 4f7 4f75d16s2
65 Tb Terbium  1s2 2s2p6 3s2p6d10 4s2p6d10f9 5s2p6 6s2 4f9 4f96s2
66 Dy Dysprosium  1s2 2s2p6 3s2p6d10 4s2p6d10f10 5s2p6 6s2 4f10 4f106s2
67 Ho Holmium  1s2 2s2p6 3s2p6d10 4s2p6d10f11 5s2p6 6s2 4f11 4f116s2
68 Er Erbium  1s2 2s2p6 3s2p6d10 4s2p6d10f12 5s2p6 6s2 4f12 4f126s2
69 Tm Thulium  1s2 2s2p6 3s2p6d10 4s2p6d10f13 5s2p6 6s2 4f13 4f136s2
70 Yb Ytterbium  1s2 2s2p6 3s2p6d10 4s2p6d10f14 5s2p6 6s2 4f14 4f146s2

Figure 4693 shows the relation between electron binding energies and atomic number (Z).

Relation between electron binding energies and atomic number (Z)

Figure 4693. Relation between electron binding energies and atomic number (Z) (at low binding energies).






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