Rare-Earths

Rare Earth Metals


include all the 15 elements in the lanthanoid group of the periodic table plus scandium and yttrium. The table below highlights all rare earth elements in gold.
Rare earth elements were originally thought to be rare, however it is now known that many of them are actually fairly abundant, with cerium being the 25th most abundant material in the Earth’s crust. What makes rare earths harder to come by is their geochemical tendency to co-exist in very small amounts attached to common ores and elements. It is for this reason that they are generally produced as by-products from other mined ores. These elements became popular when it was discovered that they could help greatly reduce the size of those brick-sized old cell phones. Since then, they’ve been implemented in all sorts of new technology and have also become important in the creation of powerful rare earth magnets.
1
H
Hydrogen
1.0079
2
He
Helium
4.003
3
Li
Lithium
6.941
4
Be
Berylium
9.0122
Metals:

Alkali
Alkaline Earth
Lanthanoid/Rare Earth
Transition Metal
Post Transition Metals
Actinoid

 

Non-Metals:
Metalloid
Non-Metal
Halogen
Noble Gas

Base Metals Minor Metals

5
B
Boron
10.811
6
C
Carbon
12.081
7
N
Nitrogen
14.007
8
O
Oxygen
15.999
9
F
Fluorine
18.998
10
Ne
Neon
20.180
11
Na
Sodium
22.990
12
Mg
Magnesium
24.305
13
Al
Aluminum
26.982
14
Si
Silicon
28.086
15
P
Phosphorous
30.977
16
S
Sulfur
32.065
17
Cl
Chlorine
35.453
18
Ar
Argon
39.948
19
K
Potassium
39.098
20
Ca
Calcium
40.078
21
Sc
Scandium
44.966
22
Ti
Titanium
12.081
23
V
Vanadium
14.007
24
Cr
Chromium
15.999
25
Mn
Manganese
18.998
26
Fe
Iron
20.180
27
Co
Cobalt
12.081
28
Ni
Nickel
14.007
29
Cu
Copper
15.999
30
Zn
Zinc
65.38
31
Ga
Gallium
69.723
32
Ge
Germanium
72.631
33
A
Arsenic
74.922
34
Se
Selenium
78.971
35
Br
Bromine
79.904
36
Kr
Krypton
83.798
37
Rb
Rubidium
85.468
38
Sr
Strontium
40.078
39
Y
Yttrium
88.906
40
Zr
Zirconium
91.224
41
Nb
Niobium
92.906
42
Mo
Molybdrium
95.96
43
Tc
Technetium
98
44
Ru
Ruthenium
101.07
45
Rh
Rhodium
102.906
46
Pd
Palladium
106.42
47
Ag
Silver
107.868
48
Cd
Cadmium
112.441
49
In
Indium
114.818
50
Sn
Tin
118.710
51
Sb
Antimony
121.760
52
Te
Tellurium
127.60
53
I
Iodine
126.904
54
Xe
Xenon
131.293
55
Cs
Cesium
39.098
56
Ba
Barium
40.078
57-71

72
Hf
Hafnium
178.49
73
Ta
Tantalum
180.948
74
W
Tungsten
183.84
75
Re
Rhenium
186.207
76
Os
Osurium
190.23
77
Ir
Indium
192.217
78
Pt
Plutonium
195.084
79
Au
Gold
196.967
80
Hg
Mercury
200.59
81
Tl
Thallium
204.383
82
Pb
Lead
207.2
83
Bi
Bismuth
208.980
84
Po
Polonium
(210)
85
At
Astatine
(210)
86
Rn
Radon
(220)
87
Fr
Francium
(223)
88
Ra
Radium
(226)
89-103 104
Rf
Rutherfordium
(261)
105
Db
Dubnium
(262)
106
Sb
Seaborgium
(266)
107
Bh
Bohrium
(264)
108
Hs
Hassium
(277)
109
Mt
Meitnerium
(268)
110
Ds
Darmstadium
(271)
111
Rg
Roentgenium
(272)
112
Cn
Copernicium
(285)
113
Uut
Ununtrium
(284)
114
Fl
Flerovium
(289)
115
Uup
Ununpentium
(288)
116
Lv
Livermorium
(292)
117
Uus
Ununseptium
118
Uuo
Ununoctium
(294)
57
La
Lanthanum
138.905
58
Ce
Cerium
140.116
59
Pr
Praseodymium
140.908
60
Nd
Neodymium
144.242
61
Pm
Promethium
(145)
62
Sm
Samarium
150.36
63
Eu
Europium
151.964
64
Gd
Gadolinium
157.25
65
Tb
Terbium
158.925
66
Dy
Dysprosium
162.500
67
Ho
Holmium
164.903
68
Er
Erbium
167.259
69
Tm
Thulium
168.934
70
Yb
Ytterbium
173.054
71
Lu
Lutetium
174.967
89
Ac
Actinium
(227)
90
Th
Thorium
232.038
91
Pa
Protactinium
231.036
92
U
Uranium
238.029
93
Np
Neptunium
(237)
94
Pu
Plutonium
(244)
95
Am
Americium
(243)
96
Cm
Curium
(247)
97
Bk
Berkelium
(247)
98
Cf
Californium
(251)
99
Es
Einsteinium
(252)
100
Fm
Fermium
(257)
101
Md
Mendelevium
(258)
102
No
Nobelium
(259)
103
Lr
Lawrencium
(262)