List of elements
 » Argon
 » Boron
 » Gold
 » Iron
 » Lead
 » Neon
 » Radon
 » Tin
 » Xenon
 » Zinc
mineralogy elements Er Erbium

Er - Erbium - METAL LANTHANIDES

1522°
2510°
167.259
3
68
Er
[Xe] 4f12 6s2
2
8
18
30
8
2
1.24
6.1077
Synthetic
Radioactive
Liquid
Gaseous
Erbium Electronic configuration diagram
Electronic configuration diagram

Name Erbium
Number 68
Atomic 167.259
Symbol Er
Fusion 1522
Boiling 2510
Density 9.066
Period 6
Group 0
Discovery 1843 Mosander
Abundance 3.5
Radius 2.5
Electronegativity 1.24
Ionization 6.1077
Number of isotopes 16
Electronic configuration [Xe] 4f12 6s2
Oxidation states 3
Electron by energy level 2,8,18,30,8,2

Mineral Hardness Density Formula
Adamsite-(Y) 3.00 / 3.00 NaY(CO3)2·6H2O
Caysichite-(Y) 4.50 / 4.50 3.03 (Ca,Yb,Er)4Y4Si8O20(CO3)6(OH)·7H2O
Decrespignyite-(Y) 4.00 / 4.00 3.64 Y4Cu(CO3)4Cl(OH)5·2H2O
Dissakisite-(La) 6.50 / 7.00 3.79 CaLaMgAl2(Si2O7)(SiO4)O(OH)
Fluorcalciobritholite 5.50 / 5.50 4.20 (Ca,REE)5(SiO4,PO4)3F
Hingganite-(Y) 5.00 / 6.00 BeY(SiO4)(OH)
Iwashiroite-(Y) 6.00 / 6.00 7.10 YTaO4
Moskvinite-(Y) 5.00 / 5.00 2.91 Na2KYSi6O15
Samarskite-(Yb) 5.00 / 6.00 7.03 YbNbO4
Yakovenchukite-(Y) 5.00 / 5.00 2.83 K3NaCaY2Si12O30·4H2O