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Lanthanoids

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Atomic number  Name  Symbol  Electronegativity
57 Lanthanum La 1.1
58 Cerium Ce 1.12
59 Praseodymium Pr 1.13
60 Neodymium Nd 1.14
61 Promethium Pm 1.13
62 Samarium Sm 1.17
63 Europium Eu 1.2
64 Gadolinium Gd 1.2
65 Terbium Tb 1.1
66 Dysprosium Dy 1.22
67 Holmium Ho 1.23
68 Erbium Er 1.24
69 Thulium Tm 1.25
70 Ytterbium Yb 1.1
71 Lutetium Lu 1.27


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