Erbij
68
Er
Skupina
n/a
Perioda
6
Blok
f
Protoni
Elektroni
Neutroni
68
68
99
Opća svojstva
Atomski broj
68
Relativna atomska masa
167,259
Maseni broj
167
Kategorija
Lantanoidi
Boja
Srebrna
Radioaktivan
Ne
Erbij je imenovan po Ytterbyu, gradu u Švedskoj
Kristalna struktura
Jednostavna heksagonska
Povijest
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.
Elektrona po ljusci
2, 8, 18, 30, 8, 2
Elektronska konfiguracija
[Xe] 4f12 6s2
The highest concentration of erbium in humans is in the bones
Fizikalna svojstva
Agregacijsko stanje
Čvrsto
Gustoća
9,066 g/cm3
Talište
1802,15 K | 1529 °C | 2784,2 °F
Vrelište
3141,15 K | 2868 °C | 5194,4 °F
Toplina taljenja
19,9 kJ/mol
Toplina isparavanja
285 kJ/mol
Specifični toplinski kapacitet
0,168 J/g·K
Zastupljenost u Zemljinoj kori
0,0003%
Zastupljenost u svemiru
2×10-7%
CAS broj
7440-52-0
PubChem CID broj
23980
Atomska svojstva
Atomski radijus
176 pm
Kovalentni radijus
189 pm
Elektronegativnost
1,24 (Paulingova ljestvica)
Potencijal ionizacije
6,1077 eV
Atomski volumen
18,4 cm3/mol
Toplinska vodljivost
0,143 W/cm·K
Stanja oksidacije
3
Primjene
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