Home > Lanthanide
| Atomic No.
| Name
| Symbol
|
| 57
| Lanthanum
| La
|
| 58
| Cerium
| Ce
|
| 59
| Praseodymium
| Pr
|
| 60
| Neodymium
| Nd
|
| 61
| Promethium
| Pm
|
| 62
| Samarium
| Sm
|
| 63
| Europium
| Eu
|
| 64
| Gadolinium
| Gd
|
| 65
| Terbium
| Tb
|
| 66
| Dysprosium
| Dy
|
| 67
| Holmium
| Ho
|
| 68
| Erbium
| Er
|
| 69
| ThuliumErbium Thulium Ytterbium Tm Md Full table General Name, Symbol, NumberThulium, Tm, 69 Chemical series Lanthanides Group, Period, BlockNA, 6 , f Density, Hardness 9321 kg/m3, no data Appearance silvery gray Atomic properties Atomic weight 168. 93421 u Atom
| Tm
|
| 70
| YtterbiumThulium Ytterbium Lutetium Yb No Full table General Name, Symbol, NumberYtterbium, Yb, 70 Chemical series Lanthanides Group, Period, BlockNA, 6, f Density, Hardness 6570 kg/m3, ND Appearance silvery white Atomic properties Atomic weight 173. 04 u Atomic r
| Yb
|
The lanthanide series is the 14 rare earthA rare earth is an oxide of a rare earth element. Often rare earth elements themselves are loosely called "rare earths". Rare earth elements, or metals, are the lanthanides and actinides. They come from the f-block. They are: lanthanum, cerium, praseodymi chemical elements which lie between lanthanum and ytterbiumThulium Ytterbium Lutetium Yb No Full table General Name, Symbol, NumberYtterbium, Yb, 70 Chemical series Lanthanides Group, Period, BlockNA, 6, f Density, Hardness 6570 kg/m3, ND Appearance silvery white Atomic properties Atomic weight 173. 04 u Atomic r on the periodic tableThe periodic table of the chemical elements is a tabular display of the known chemical elements. The elements are arranged by electron structure so that many chemical properties vary regularly across the table. Each element is listed by its atomic number. That is, they have atomic numbers between 57 and 70 inclusive. Below them are the actinideThe actinide series encompasses the 14 chemical elements that lie between actinium and nobelium on the periodic table with atomic numbers between 89 and 102 inclusive. They are similar in characteristics to the elements of the lanthanide series. The actins.
Lanthanides are elements in which the f orbitals are partly or completely filled, while the outermost p and d orbitals are empty. Since the f orbitals do not have as much effect on chemistry as the s, p, and d orbitals, lanthanide series elements are chemically similar to each other.
The lanthanides are typically placed below the main body of the periodic table in the manner of a footnote. The full-width version of the periodic table shows the position of the lanthanides more clearly.
External links
Chemical element groups
