ମୁଖ୍ୟ ସୂଚୀ ଦେଖିବେ

ନିଓଡ଼ାଇମିଅମ ହେଉଛି ଏକ ରାସାୟନିକ ମୌଳିକ ଯାହାର ପ୍ରତୀକ Ndପରମାଣୁ କ୍ରମାଙ୍କ ୬୦ ଅଟେ ।

Neodymium,  60Nd
Neodymium2.jpg
ସାଧାରଣ ଗୁଣ
ନାମ, ପ୍ରତୀକneodymium, Nd
Appearancesilvery white
ଉଚ୍ଚାରଣ /ˌn.ɵˈdɪmiəm/
NEE-o-DIM-ee-əm
Neodymium 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)
-

Nd

U
praseodymiumneodymiumpromethium
ପରମାଣୁ କ୍ରମାଙ୍କ (Z)60
ଶ୍ରେଣୀ, ବ୍ଳକgroup n/a, f-block
ପର୍ଯ୍ୟାୟperiod 6
ମୌଳିକ ପ୍ରକାର  lanthanide
ମାନକ ପରମାଣବିକ ଓଜନ (Ar)144.242
ଇଲେକ୍‌ଟ୍ରୋନ୍ ବିନ୍ୟାସ[Xe] 4f4 6s2
per shell
2, 8, 18, 22, 8, 2
ଭୌତିକ ଗୁଣ
ଅବସ୍ଥାsolid
ଗଳନାଙ୍କ1297 K ​(1024 °C, ​1875 °F)
ସ୍ଫୁଟନାଙ୍କ3347 K ​(3074 °C, ​5565 °F)
Density near r.t.7.01 g/cm3
when liquid, at m.p.6.89 g/cm3
Heat of fusion7.14 kJ/mol
Heat of 289 kJ/mol
Molar heat capacity27.45 J/(mol·K)
 pressure
P (Pa) 1 10 100 1 k 10 k 100 k
at T (K) 1595 1774 1998 (2296) (2715) (3336)
Atomic properties
Oxidation states3, 2, 1
(mildly basic oxide)
ElectronegativityPauling scale: 1.14
Atomic radiusempirical: 181 pm
Covalent radius201±6 pm
Miscellanea
Crystal structurehexagonal
Hexagonal crystal structure for neodymium
Speed of sound thin rod2330 m/s (at 20 °C)
Thermal expansion(r.t.) (α, poly) 9.6 µm/(m·K)
Thermal conductivity16.5 W/(m·K)
Electrical resistivity(r.t.) (α, poly) 643 n Ω·m
Magnetic orderingparamagnetic, antiferromagnetic below 20 K[୧]
Young's modulus(α form) 41.4 GPa
Shear modulus(α form) 16.3 GPa
Bulk modulus(α form) 31.8 GPa
Poisson ratio(α form) 0.281
Vickers hardness343 MPa
Brinell hardness265 MPa
CAS Number7440-00-8
ଇତିହାସ
ଆବିଷ୍କାରCarl Auer von Welsbach (1885)
Most stable isotopes of neodymium
iso NA half-life DM DE (MeV) DP
142Nd 27.2% 142Nd is stable with 82 neutrons
143Nd 12.2% 143Nd is stable with 83 neutrons
144Nd 23.8% 2.29×1015 y α 1.905 140Ce
145Nd 8.3% >6×1016 y α 1.5784 141Ce
146Nd 17.2% 146Nd is stable with 86 neutrons
148Nd 5.7% >3.0×1018 y α 0.5986 144Ce
ββ 1.9288 148Sm
150Nd 5.6% 6.7×1018 y ββ 3.367 150Sm
| references

ବିଷୟସୂଚୀ

ଧର୍ମସମ୍ପାଦନ କରନ୍ତୁ

ଉପସ୍ଥିତିସମ୍ପାଦନ କରନ୍ତୁ

ଗଠନସମ୍ପାଦନ କରନ୍ତୁ

ଉତ୍ପାଦନସମ୍ପାଦନ କରନ୍ତୁ

ସମସ୍ଥାନିକସମ୍ପାଦନ କରନ୍ତୁ

ବ୍ୟବହାରସମ୍ପାଦନ କରନ୍ତୁ

ଆଧାରସମ୍ପାଦନ କରନ୍ତୁ

  1. Gschneidner, K. A.; Eyring, L. (1978). Handbook on the Physics and Chemistry of Rare Earths. Amsterdam: North Holland. ISBN 0444850228.

ଆହୁରି ପଢନ୍ତୁସମ୍ପାଦନ କରନ୍ତୁ

  • "The Industrial Chemistry of the Lanthanons, Yttrium, Thorium and Uranium", by R.J. Callow, Pergamon Press 1967.
  • Lindsay Chemical Division, American Potash and Chemical Corporation, Price List, 1960.
  • "Chemistry of the Lanthanons", by R.C. Vickery, Butterworths 1953.

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