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Erbium,  68Er
Erbium-crop.jpg
ସାଧାରଣ ଗୁଣ
ନାମ, ପ୍ରତୀକerbium, Er
Appearancesilvery white
ଉଚ୍ଚାରଣ /ˈɜrbiəm/ UR-bee-əm
Erbium in the periodic table
Hydrogen (other non-metal)
Helium (noble gas)
Lithium (alkali metal)
Beryllium (alkaline earth metal)
Boron (metalloid)
Carbon (other non-metal)
Nitrogen (other non-metal)
Oxygen (other non-metal)
Fluorine (halogen)
Neon (noble gas)
Sodium (alkali metal)
Magnesium (alkaline earth metal)
Aluminium (post-transition metal)
Silicon (metalloid)
Phosphorus (other non-metal)
Sulfur (other non-metal)
Chlorine (halogen)
Argon (noble gas)
Potassium (alkali metal)
Calcium (alkaline earth metal)
Scandium (transition metal)
Titanium (transition metal)
Vanadium (transition metal)
Chromium (transition metal)
Manganese (transition metal)
Iron (transition metal)
Cobalt (transition metal)
Nickel (transition metal)
Copper (transition metal)
Zinc (transition metal)
Gallium (post-transition metal)
Germanium (metalloid)
Arsenic (metalloid)
Selenium (other non-metal)
Bromine (halogen)
Krypton (noble gas)
Rubidium (alkali metal)
Strontium (alkaline earth metal)
Yttrium (transition metal)
Zirconium (transition metal)
Niobium (transition metal)
Molybdenum (transition metal)
Technetium (transition metal)
Ruthenium (transition metal)
Rhodium (transition metal)
Palladium (transition metal)
Silver (transition metal)
Cadmium (transition metal)
Indium (post-transition metal)
Tin (post-transition metal)
Antimony (metalloid)
Tellurium (metalloid)
Iodine (halogen)
Xenon (noble gas)
Caesium (alkali metal)
Barium (alkaline earth metal)
Lanthanum (lanthanoid)
Cerium (lanthanoid)
Praseodymium (lanthanoid)
Neodymium (lanthanoid)
Promethium (lanthanoid)
Samarium (lanthanoid)
Europium (lanthanoid)
Gadolinium (lanthanoid)
Terbium (lanthanoid)
Dysprosium (lanthanoid)
Holmium (lanthanoid)
Erbium (lanthanoid)
Thulium (lanthanoid)
Ytterbium (lanthanoid)
Lutetium (lanthanoid)
Hafnium (transition metal)
Tantalum (transition metal)
Tungsten (transition metal)
Rhenium (transition metal)
Osmium (transition metal)
Iridium (transition metal)
Platinum (transition metal)
Gold (transition metal)
Mercury (transition metal)
Thallium (post-transition metal)
Lead (post-transition metal)
Bismuth (post-transition metal)
Polonium (post-transition metal)
Astatine (halogen)
Radon (noble gas)
Francium (alkali metal)
Radium (alkaline earth metal)
Actinium (actinoid)
Thorium (actinoid)
Protactinium (actinoid)
Uranium (actinoid)
Neptunium (actinoid)
Plutonium (actinoid)
Americium (actinoid)
Curium (actinoid)
Berkelium (actinoid)
Californium (actinoid)
Einsteinium (actinoid)
Fermium (actinoid)
Mendelevium (actinoid)
Nobelium (actinoid)
Lawrencium (actinoid)
Rutherfordium (transition metal)
Dubnium (transition metal)
Seaborgium (transition metal)
Bohrium (transition metal)
Hassium (transition metal)
Meitnerium (unknown chemical properties)
Darmstadtium (unknown chemical properties)
Roentgenium (unknown chemical properties)
Copernicium (transition metal)
Ununtrium (unknown chemical properties)
Flerovium (unknown chemical properties)
Ununpentium (unknown chemical properties)
Livermorium (unknown chemical properties)
Ununseptium (unknown chemical properties)
Ununoctium (unknown chemical properties)
-

Er

Fm
holmiumerbiumthulium
ପରମାଣୁ କ୍ରମାଙ୍କ (Z)68
ଶ୍ରେଣୀ, ବ୍ଳକgroup n/a, f-block
ପର୍ଯ୍ୟାୟperiod 6
ମୌଳିକ ପ୍ରକାର  lanthanide
ମାନକ ପରମାଣବିକ ଓଜନ (Ar)167.259
ଇଲେକ୍‌ଟ୍ରୋନ୍ ବିନ୍ୟାସ[Xe] 4f12 6s2
per shell
2, 8, 18, 30, 8, 2
ଭୌତିକ ଗୁଣ
ଅବସ୍ଥାsolid
ଗଳନାଙ୍କ1802 K ​(1529 °C, ​2784 °F)
ସ୍ଫୁଟନାଙ୍କ3141 K ​(2868 °C, ​5194 °F)
Density near r.t.9.066 g/cm3
when liquid, at m.p.8.86 g/cm3
Heat of fusion19.90 kJ/mol
Heat of 280 kJ/mol
Molar heat capacity28.12 J/(mol·K)
 pressure
P (Pa) 1 10 100 1 k 10 k 100 k
at T (K) 1504 1663 (1885) (2163) (2552) (3132)
Atomic properties
Oxidation states3, 2, 1
(basic oxide)
ElectronegativityPauling scale: 1.24
Atomic radiusempirical: 176 pm
Covalent radius189±6 pm
Miscellanea
Crystal structurehexagonal close-packed (hcp)
Hexagonal close packed crystal structure for erbium
Speed of sound thin rod2830 m/s (at 20 °C)
Thermal expansion(r.t.) (poly) 12.2 µm/(m·K)
Thermal conductivity14.5 W/(m·K)
Electrical resistivity(r.t.) (poly) 0.860 µ Ω·m
Magnetic orderingparamagnetic at 300 K
Young's modulus69.9 GPa
Shear modulus28.3 GPa
Bulk modulus44.4 GPa
Poisson ratio0.237
Vickers hardness589 MPa
Brinell hardness814 MPa
CAS Number7440-52-0
ଇତିହାସ
ଆବିଷ୍କାରCarl Gustaf Mosander (1842)
Most stable isotopes of erbium
iso NA half-life DM DE (MeV) DP
160Er syn 28.58 h ε 0.330 160Ho
162Er 0.139% >1.4×1014 y α 1.6460 158Dy
β+β+ 1.8445 162Dy
164Er 1.601% 164Er is stable with 96 neutrons
165Er syn 10.36 h ε 0.376 165Ho
166Er 33.503% 166Er is stable with 98 neutrons
167Er 22.869% 167Er is stable with 99 neutrons
168Er 26.978% 168Er is stable with 100 neutrons
169Er syn 9.4 d β 0.351 169Tm
170Er 14.910% >3.2×1017 y α 0.0502 166Dy
ββ 0.6536 170Yb
171Er syn 7.516 h β 1.490 171Tm
172Er syn 49.3 h β 0.891 172Tm
| references

ଏର୍ବିଅମ ହେଉଛି ଏକ ରାସାୟନିକ ମୌଳିକ ଯାହାର ପ୍ରତୀକ Erପରମାଣୁ କ୍ରମାଙ୍କ ୬୮ ଅଟେ ।

ଧର୍ମ[ସମ୍ପାଦନା]

ଭୌତିକ[ସମ୍ପାଦନା]

ରସାୟନିକ[ସମ୍ପାଦନା]

ସମସ୍ଥାନିକ[ସମ୍ପାଦନା]

ଉପସ୍ଥିତି[ସମ୍ପାଦନା]

ଗଠନ[ସମ୍ପାଦନା]

ଉତ୍ପାଦନ[ସମ୍ପାଦନା]

ବ୍ୟବହାର[ସମ୍ପାଦନା]

ଆହୁରି ଦେଖନ୍ତୁ[ସମ୍ପାଦନା]

ଆଧାର[ସମ୍ପାଦନା]

ଆହୁରି ପଢନ୍ତୁ[ସମ୍ପାଦନା]

  • Guide to the Elements – Revised Edition, Albert Stwertka, (Oxford University Press; 1998) ISBN 0-19-508083-1

ବାହାର ଲିଙ୍କ[ସମ୍ପାଦନା]