Erbij
68
Er
Skupina
n/p
Perioda
6
Blok
f
Protoni
Elektroni
Nevtroni
68
68
99
Splošne lastnosti
Vrstno število
68
Atomska teža
167,259
Masno število
167
Kategorija
Lantanoidi
Barva
Srebrna
Radioaktivno
Ne
Erbium was named after Ytterby, a town in Sweden
Kristalna struktura
Heksagonalna
Zgodovina
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.
Elektroni po lupinah
2, 8, 18, 30, 8, 2
Razporeditev elektronov
[Xe] 4f12 6s2
The highest concentration of erbium in humans is in the bones
Fizikalne lastnosti
Faza snovi
Trdnina
Gostota
9,066 g/cm3
Tališče
1802,15 K | 1529 °C | 2784,2 °F
Vrelišče
3141,15 K | 2868 °C | 5194,4 °F
Talilna toplota
19,9 kJ/mol
Izparilna toplota
285 kJ/mol
Toplotna kapaciteta
0,168 J/g·K
Zastopanost v Zemljini skorji
0,0003%
Zastopanost v vesolju
2×10-7%
CAS številka
7440-52-0
PubChem CID številka
23980
Atomske lastnosti
Atomski polmer
176 pm
Kovalentni polmer
189 pm
Elektronegativnost
1,24 (Paulingova lestvica)
Ionizacijski potencial
6,1077 eV
Atomski volumen
18,4 cm3/mol
Toplotna prevodnost
0,143 W/cm·K
Oksidacijska stanja
3
Uporabe
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
Izotopi
Stabilni izotopi
162Er, 164Er, 166Er, 167Er, 168Er, 170ErNestabilni izotopi
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