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Erbium

Erbium is a chemical element; it has symbol Er and atomic number 68. A silvery-white solid metal when artificially isolated, natural erbium is always found in chemical combination with other elements. It is a lanthanide, a rare-earth element, originally found in the gadolinite mine in Ytterby, Sweden, which is the source of the element's name.

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162Er
0.139%
164Er
1.60%
165Er
synth
166Er
33.5%
167Er
22.9%
168Er
27.0%

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Overview

Characteristics

Compounds

History

Occurrence

Production

Applications

Biological role and precautions

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Map overview Semantic statistics

Erbium

Nodes141
Edges140
Triples150
Avg. degree1.99
Density0.014184
Components1

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Erbium

Top relations

related to history · 17
Erbium → After, Carl Gustaf Mosander, Charles James, Er2O3, Erbia, Fairly, Georges Urbain, He, Heinrich Bommer, Marc Delafontaine, Mosander, Not, Reasonably, Sweden, Swiss, Wilhelm Klemm, Ytterby
related to Halides · 12
Erbium → AlCl3, C2/m, C42h, Cl, Er, H2O, III, In, It, NH4, P2/c, P2/n
related to Lasers and optics · 12
Erbium → Co-doping, Common, EDFAs, Er, Er/Yb, Erbium-doped, In, Such, The, These, YAG, Yb
related to Occurrence · 12
Erbium → China, Concentration, Consequently, Earth’s, In, It, Like, Mosander, The, This, When, Ytterby
related to Biological role and precautions · 7
Erbium → Humans, II, Ingestion, Ionic, RNA, The, When
related to Oxides · 7
Erbium → Carl Gustaf Mosander, Charles James, Georges Urbain, III, It, The, The Er3
has application · 6
Erbium → An, Er0, Er3Co, Er3Ni, The, When
related to Production · 6
Erbium → After, Crushed, HNO3, In, The, Thorium
related to Isotopes · 5
Erbium → All, Naturally, Of, The, This
Ionization energies · 3
Erbium → 1st: 589.3 kJ/mol, 2nd: 1150 kJ/mol, 3rd: 2194 kJ/mol

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Important terminology

metal used element optical laser er erbia oxide ions applications isotopes also rare-earth found fiber ytterby nm salts oxides chemical

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
Erbium162Er0.139%1.00infobox
Erbium164Er1.60%1.00infobox
Erbium165Ersynth1.00infobox
Erbium166Er33.5%1.00infobox
Erbium167Er22.9%1.00infobox
Erbium168Er27.0%1.00infobox
Erbium169Ersynth1.00infobox
Erbium170Er14.9%1.00infobox
ErbiumAppearancesilvery white1.00infobox
Erbiumat T (K)15041.00infobox
ErbiumAtomic number (Z)681.00infobox
ErbiumAtomic radiusempirical: 176 pm1.00infobox
ErbiumBlockf-block1.00infobox
ErbiumBoiling point3141 K ​(2868 °C, ​5194 °F)1.00infobox
ErbiumBrinell hardness600–1070 MPa1.00infobox
ErbiumBulk modulus44.4 GPa1.00infobox
ErbiumCAS Number7440-52-01.00infobox
ErbiumCovalent radius189±6 pm1.00infobox
ErbiumCrystal structure​hexagonal close-packed (hcp) (hP2)1.00infobox
ErbiumDensity (at 20° C)9.065 g/cm31.00infobox
ErbiumDiscoveryCarl Gustaf Mosander (1843)1.00infobox
ErbiumElectrical resistivitypoly: 0.860 µΩ⋅m (r.t.)1.00infobox
ErbiumElectron configuration[Xe] 4f12 6s21.00infobox
ErbiumElectronegativityPauling scale: 1.241.00infobox
ErbiumElectrons per shell2, 8, 18, 30, 8, 21.00infobox
ErbiumFirst isolationWilhelm Klemm and Heinrich Bommer (1934)1.00infobox
ErbiumGroupf-block groups (no number)1.00infobox
ErbiumHeat of fusion19.90 kJ/mol1.00infobox
ErbiumHeat of vaporization280 kJ/mol1.00infobox
ErbiumIonization energies1st: 589.3 kJ/mol1.00infobox

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