Template:Infobox erbium

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Erbium   68Er
Erbium-crop.jpg
General properties
Name, symbol erbium, Er
Pronunciation /ˈɜrbiəm/ UR-bee-əm
Appearance silvery white
Erbium in the periodic table
Hydrogen (diatomic nonmetal)
Helium (noble gas)
Lithium (alkali metal)
Beryllium (alkaline earth metal)
Boron (metalloid)
Carbon (polyatomic nonmetal)
Nitrogen (diatomic nonmetal)
Oxygen (diatomic nonmetal)
Fluorine (diatomic nonmetal)
Neon (noble gas)
Sodium (alkali metal)
Magnesium (alkaline earth metal)
Aluminium (post-transition metal)
Silicon (metalloid)
Phosphorus (polyatomic nonmetal)
Sulfur (polyatomic nonmetal)
Chlorine (diatomic nonmetal)
Argon (noble gas)
Potassium (alkali metal)
Calcium (alkaline earth metal)
Scandium (transition metal)
Titanium (transition metal)
Vanadium (transition metal)
Chromium (transition metal)
Manganese (transition metal)
Iron (transition metal)
Cobalt (transition metal)
Nickel (transition metal)
Copper (transition metal)
Zinc (transition metal)
Gallium (post-transition metal)
Germanium (metalloid)
Arsenic (metalloid)
Selenium (polyatomic nonmetal)
Bromine (diatomic nonmetal)
Krypton (noble gas)
Rubidium (alkali metal)
Strontium (alkaline earth metal)
Yttrium (transition metal)
Zirconium (transition metal)
Niobium (transition metal)
Molybdenum (transition metal)
Technetium (transition metal)
Ruthenium (transition metal)
Rhodium (transition metal)
Palladium (transition metal)
Silver (transition metal)
Cadmium (transition metal)
Indium (post-transition metal)
Tin (post-transition metal)
Antimony (metalloid)
Tellurium (metalloid)
Iodine (diatomic nonmetal)
Xenon (noble gas)
Caesium (alkali metal)
Barium (alkaline earth metal)
Lanthanum (lanthanide)
Cerium (lanthanide)
Praseodymium (lanthanide)
Neodymium (lanthanide)
Promethium (lanthanide)
Samarium (lanthanide)
Europium (lanthanide)
Gadolinium (lanthanide)
Terbium (lanthanide)
Dysprosium (lanthanide)
Holmium (lanthanide)
Erbium (lanthanide)
Thulium (lanthanide)
Ytterbium (lanthanide)
Lutetium (lanthanide)
Hafnium (transition metal)
Tantalum (transition metal)
Tungsten (transition metal)
Rhenium (transition metal)
Osmium (transition metal)
Iridium (transition metal)
Platinum (transition metal)
Gold (transition metal)
Mercury (transition metal)
Thallium (post-transition metal)
Lead (post-transition metal)
Bismuth (post-transition metal)
Polonium (post-transition metal)
Astatine (metalloid)
Radon (noble gas)
Francium (alkali metal)
Radium (alkaline earth metal)
Actinium (actinide)
Thorium (actinide)
Protactinium (actinide)
Uranium (actinide)
Neptunium (actinide)
Plutonium (actinide)
Americium (actinide)
Curium (actinide)
Berkelium (actinide)
Californium (actinide)
Einsteinium (actinide)
Fermium (actinide)
Mendelevium (actinide)
Nobelium (actinide)
Lawrencium (actinide)
Rutherfordium (transition metal)
Dubnium (transition metal)
Seaborgium (transition metal)
Bohrium (transition metal)
Hassium (transition metal)
Meitnerium (unknown chemical properties)
Darmstadtium (unknown chemical properties)
Roentgenium (unknown chemical properties)
Copernicium (transition metal)
Ununtrium (unknown chemical properties)
Flerovium (unknown chemical properties)
Ununpentium (unknown chemical properties)
Livermorium (unknown chemical properties)
Ununseptium (unknown chemical properties)
Ununoctium (unknown chemical properties)
-

Er

Fm
holmiumerbiumthulium
Atomic number 68
Standard atomic weight 167.259
Element category lanthanide
Group, period, block group n/a, period 6, f-block
Electron configuration [Xe] 4f12 6s2
per shell: 2, 8, 18, 30, 8, 2
Physical properties
Phase solid
Melting point 1802 K, ​1529 °C, ​2784 °F
Boiling point 3141 K, ​2868 °C, ​5194 °F
Density (near r.t.) 9.066 g·cm−3 (at 0 °C, 101.325 kPa)
Liquid density at m.p.: 8.86 g·cm−3
Heat of fusion 19.90 kJ·mol−1
Heat of vaporization 280 kJ·mol−1
Molar heat capacity 28.12 J·mol−1·K−1

Vapor pressure

P (Pa) 1 10 100 1 k 10 k 100 k
at T (K) 1504 1663 (1885) (2163) (2552) (3132)
Atomic properties
Oxidation states 3, 2, 1
(basic oxide)
Electronegativity 1.24 (Pauling scale)
Ionization energies 1st: 589.3 kJ·mol−1
2nd: 1150 kJ·mol−1
3rd: 2194 kJ·mol−1
Atomic radius empirical: 176 pm
Covalent radius 189±6 pm
Miscellanea
Crystal structure hexagonal close-packed (hcp)
Hexagonal close packed crystal structure for erbium
Speed of sound thin rod: 2830 m·s−1 (at 20 °C)
Thermal expansion (r.t.) (poly) 12.2 µm·m−1·K−1
Thermal conductivity 14.5 W·m−1·K−1
Electrical resistivity (r.t.) (poly) 0.860 µ Ω·m
Magnetic ordering paramagnetic at 300 K
Young's modulus 69.9 GPa
Shear modulus 28.3 GPa
Bulk modulus 44.4 GPa
Poisson ratio 0.237
Vickers hardness 589 MPa
Brinell hardness 814 MPa
CAS Number 7440-52-0
History
Naming after Ytterby (Sweden), where it was mined
Discovery Carl Gustaf Mosander (1842)
Most stable isotopes
Main article: Isotopes of erbium
iso NA half-life DM DE (MeV) DP
160Er syn 28.58 h ε 0.330 160Ho
162Er 0.139% >1.4×1014 y (α) 1.6460 158Dy
(β+β+) 1.8445 162Dy
164Er 1.601% - (α) 1.3041 160Dy
(β+β+) 0.0241 164Dy
165Er syn 10.36 h ε 0.376 165Ho
166Er 33.503% - (α) 0.8309 162Dy
167Er 22.869% - (α) 0.6657 163Dy
168Er 26.978% - (α) 0.5527 164Dy
169Er syn 9.4 d β 0.351 169Tm
170Er 14.910% >3.2×1017 y (α) 0.0502 166Dy
(ββ) 0.6536 170Yb
171Er syn 7.516 h β 1.490 171Tm
172Er syn 49.3 h β 0.891 172Tm
Decay modes in parentheses are predicted, but have not yet been observed
· references

References

These references will appear in the article, but this list appears only on this page.
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{{Periodic table (32 columns, micro)}}
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References

These references will appear in the article, but this list appears only on this page.
  1. ^ Endt, P. M. (1990). "Energy levels of A = 21–44 nuclei (VII)". Nuclear Physics A 521: 1–400. Bibcode:1990NuPhA.521....1E. doi:10.1016/0375-9474(90)90598-G. 
  2. ^ Chisté 2006.

See also[edit]

Index to chemical element infoboxes
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
1 1H
ibox E
/s /t
2He
ibox E
/s /t
2 3Li
ibox E
/s /t
4Be
ibox E
/s /t
5B
ibox E
/s /t
6C
ibox E
/s /t
7N
ibox E
/s /t
8O
ibox E
/s /t
9F
ibox E
/s /t
10Ne
ibox E
/s /t
3 11Na
ibox E
/s /t
12Mg
ibox E
/s /t
13Al
ibox E
/s /t
14Si
ibox E
/s /t
15P
ibox E
/s /t
16S
ibox E
/s /t
17Cl
ibox E
/s /t
18Ar
ibox E
/s /t
4 19K
ibox E
/s /t
20Ca
ibox E
/s /t
21Sc
ibox E
/s /t
22Ti
ibox E
/s /t
23V
ibox E
/s /t
24Cr
ibox E
/s /t
25Mn
ibox E
/s /t
26Fe
ibox E
/s /t
27Co
ibox E
/s /t
28Ni
ibox E
/s /t
29Cu
ibox E
/s /t
30Zn
ibox E
/s /t
31Ga
ibox E
/s /t
32Ge
ibox E
/s /t
33As
ibox E
/s /t
34Se
ibox E
/s /t
35Br
ibox E
/s /t
36Kr
ibox E
/s /t
5 37Rb
ibox E
/s /t
38Sr
ibox E
/s /t
39Y
ibox E
/s /t
40Zr
ibox E
/s /t
41Nb
ibox E
/s /t
42Mo
ibox E
/s /t
43Tc
ibox E
/s /t
44Ru
ibox E
/s /t
45Rh
ibox E
/s /t
46Pd
ibox E
/s /t
47Ag
ibox E
/s /t
48Cd
ibox E
/s /t
49In
ibox E
/s /t
50Sn
ibox E
/s /t
51Sb
ibox E
/s /t
52Te
ibox E
/s /t
53 I 
ibox E
/s /t
54Xe
ibox E
/s /t
6 55Cs
ibox E
/s /t
56Ba
ibox E
/s /t
1 asterisk 72Hf
ibox E
/s /t
73Ta
ibox E
/s /t
74W
ibox E
/s /t
75Re
ibox E
/s /t
76Os
ibox E
/s /t
77Ir
ibox E
/s /t
78Pt
ibox E
/s /t
79Au
ibox E
/s /t
80Hg
ibox E
/s /t
81Tl
ibox E
/s /t
82Pb
ibox E
/s /t
83Bi
ibox E
/s /t
84Po
ibox E
/s /t
85At
ibox E
/s /t
86Rn
ibox E
/s /t
7 87Fr
ibox E
/s /t
88Ra
ibox E
/s /t
1 asterisk 104Rf
ibox E
/s /t
105Db
ibox E
/s /t
106Sg
ibox E
/s /t
107Bh
ibox E
/s /t
108Hs
ibox E
/s /t
109Mt
ibox E
/s /t
110Ds
ibox E
/s /t
111Rg
ibox E
/s /t
112Cn
ibox E
/s /t
113Uut
ibox E
/s /t
114Fl
ibox E
/s /t
115Uup
ibox E
/s /t
116Lv
ibox E
/s /t
117Uus
ibox E
/s /t
118Uuo
ibox E
/s /t
Extended 119E119
ibox E
/s /t
120E120
ibox E
/s /t
1 asterisk 57La
ibox E
/s /t
58Ce
ibox E
/s /t
59Pr
ibox E
/s /t
60Nd
ibox E
/s /t
61Pm
ibox E
/s /t
62Sm
ibox E
/s /t
63Eu
ibox E
/s /t
64Gd
ibox E
/s /t
65Tb
ibox E
/s /t
66Dy
ibox E
/s /t
67Ho
ibox E
/s /t
68Er
ibox E
/s /t
69Tm
ibox E
/s /t
70Yb
ibox E
/s /t
71Lu
ibox E
/s /t
 
1 asterisk 89Ac
ibox E
/s /t
90Th
ibox E
/s /t
91Pa
ibox E
/s /t
92U
ibox E
/s /t
93Np
ibox E
/s /t
94Pu
ibox E
/s /t
95Am
ibox E
/s /t
96Cm
ibox E
/s /t
97Bk
ibox E
/s /t
98Cf
ibox E
/s /t
99Es
ibox E
/s /t
100Fm
ibox E
/s /t
101Md
ibox E
/s /t
102No
ibox E
/s /t
103Lr
ibox E
/s /t
 
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