Lanthanides
15 elements
Alkali Metals 6
Alkaline Earth Metals 6
Transition Metals 38
Post-transition Metals 11
Metalloids 7
Reactive Nonmetals 7
Halogens 6
Noble Gases 7
Lanthanides 15
Actinides 15
57
La
Lanthanum
138.905
58
Ce
Cerium
140.116
59
Pr
Praseodymium
140.908
60
Nd
Neodymium
144.24
61
Pm
Promethium
144.913
62
Sm
Samarium
150.4
63
Eu
Europium
151.964
64
Gd
Gadolinium
157.25
65
Tb
Terbium
158.925
66
Dy
Dysprosium
162.5
67
Ho
Holmium
164.93
68
Er
Erbium
167.26
69
Tm
Thulium
168.934
70
Yb
Ytterbium
173.05
71
Lu
Lutetium
174.967
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