Erbium
68
Er
Groep
n/a
Periode
6
Blok
f
Protrone
Elektrone
Neutrone
68
68
99
Algemene Eienskappe
Atoom Nommer
68
Atoommassa
167,259
Massa Nommer
167
Kategorie
Lantaniede
Kleur
Silver
Radioaktief
Nee
Erbium was named after Ytterby, a town in Sweden
Kristalstruktuur
Eenvoudige seshoekige
Geskiendenis
Erbium was discovered in 1843 by Swedish chemist Carl Gustaf Mosander, who detected it as an impurity in yttria.
Using ammonium hydroxide he precipitated fractions of different basicity from yttria.
In these fractions he found that the fraction that contained the pink color was erbium.
Using ammonium hydroxide he precipitated fractions of different basicity from yttria.
In these fractions he found that the fraction that contained the pink color was erbium.
Elektrone per skil
2, 8, 18, 30, 8, 2
Elektronkonfigurasie
[Xe] 4f12 6s2
The highest concentration of erbium in humans is in the bones
Fisiese Eienskappe
Fase
Soliede
Digtheid
9,066 g/cm3
Smeltpunt
1802,15 K | 1529 °C | 2784,2 °F
Kookpunt
3141,15 K | 2868 °C | 5194,4 °F
Heat of Fusion
19,9 kJ/mol
Heat of Vaporization
285 kJ/mol
Spesifieke Hitte Kapasiteit
0,168 J/g·K
Oorvloed in die aardkors
0,0003%
Oorvloed in die heelal
2×10-7%
CAS Nommer
7440-52-0
PubChem CID Nommer
23980
Atomiese Eienskappe
Atoom radius
176 pm
Kovalente Radius
189 pm
Elektronegatiewiteit
1,24 (Pauling scale)
Ionisasie potensiaal
6,1077 eV
Atoom volume
18,4 cm3/mol
Termiese geleidingsvermoë
0,143 W/cm·K
Oksidasiestate
3
Toepassings
Erbium is used in photographic filters to absorb infrared light.
Erbium oxide gives a pink color and has been used as a colorant in glasses and porcelain enamel glazes.
It is also used in nuclear technology in neutron-absorbing control rods.
Erbium is used in alloys especially with vanadium to decrease the hardness of metals.
Erbium oxide gives a pink color and has been used as a colorant in glasses and porcelain enamel glazes.
It is also used in nuclear technology in neutron-absorbing control rods.
Erbium is used in alloys especially with vanadium to decrease the hardness of metals.
Erbium is considered to be moderately toxic
Isotope
Stabiele Isotope
162Er, 164Er, 166Er, 167Er, 168Er, 170ErOnstabiele Isotope
143Er, 144Er, 145Er, 146Er, 147Er, 148Er, 149Er, 150Er, 151Er, 152Er, 153Er, 154Er, 155Er, 156Er, 157Er, 158Er, 159Er, 160Er, 161Er, 163Er, 165Er, 169Er, 171Er, 172Er, 173Er, 174Er, 175Er, 176Er, 177Er