Template:Infobox neodymium

	child table, as reused in {IB-Nd} v; e; h;
Main isotopes of neodymium

Neodymium, ₆₀Nd
	Neodymium metal in a glass vial
Neodymium
Pronunciation	/ˌniːoʊˈdɪmiəm/ (NEE-oh-DIM-ee-əm)
Appearance	silvery white
Standard atomic weight Ar°(Nd)
	144.242±0.003; 144.24±0.01 (abridged);
Neodymium in the periodic table
	praseodymium ← neodymium → promethium
Atomic number (Z)	60
Group	f-block groups (no number)
Period	period 6
Block	f-block
Electron configuration	[Xe] 4f4 6s2
Electrons per shell	2, 8, 18, 22, 8, 2
Physical properties
Phase at STP	solid
Melting point	1295 K (1022 °C, 1872 °F)
Boiling point	3347 K (3074 °C, 5565 °F)
Density (at 20° C)	7.007 g/cm3
when liquid (at m.p.)	6.89 g/cm3
Heat of fusion	7.14 kJ/mol
Heat of vaporization	289 kJ/mol
Molar heat capacity	27.45 J/(mol·K)
Atomic properties
Oxidation states	common: +3; 0, +2, +4
Electronegativity	Pauling scale: 1.14
Ionization energies	1st: 533.1 kJ/mol ; 2nd: 1040 kJ/mol ; 3rd: 2130 kJ/mol ; ;
Atomic radius	empirical: 181 pm
Covalent radius	201±6 pm
	Spectral lines of neodymium
Other properties
Natural occurrence	primordial
Crystal structure	double hexagonal close-packed (dhcp) (hP4)
Lattice constants	a = 0.36583 nm; c = 1.17968 nm (at 20 °C)
Thermal expansion	6.7×10−6/K (at 20 °C)
Thermal conductivity	16.5 W/(m⋅K)
Electrical resistivity	poly: 643 nΩ⋅m
Magnetic ordering	paramagnetic, antiferromagnetic below 20 K
Molar magnetic susceptibility	+5628.0×10−6 cm3/mol (287.7 K)
Young's modulus	41.4 GPa
Shear modulus	16.3 GPa
Bulk modulus	31.8 GPa
Speed of sound thin rod	2330 m/s (at 20 °C)
Poisson ratio	0.281
Vickers hardness	345–745 MPa
Brinell hardness	265–700 MPa
CAS Number	7440-00-8
History
Naming	after Greek νέος, "new", and δίδυμος, "twin" (of lanthanum)
Discovery	Carl Gustaf Mosander (1841)
First isolation	Carl Auer von Welsbach (1885)
Named by	Carl Auer von Welsbach (1885)
Isotopes of neodymium v; e;
	Category: Neodymium; view; talk; edit; \| references

Nd · Neodymium
Pr ← ibox Pr	^iso ₆₀Nd [e] IB-Nd [e] IBisos [e]	→ Pm ibox Pm
cat:Nd (6) cat:Nd-isotopes (59) Commons Wikidata:Q1388 Wiktionary
indexes by PT (page) v e

Data sets read by {{Infobox element}}
Name and identifiers	view edit
Symbol etymology (11 non-trivial)	view edit
Top image (caption, alt)	caption: view edit alt: view edit
Pronunciation	view edit
Allotropes (overview)	view edit
Group (overview)	view edit
Period (overview)	view edit
Block (overview)	view edit
Natural occurrence	view edit
Phase at STP	view edit
Oxidation states	view edit
Spectral lines image	view edit
Electron configuration (cmt, ref)	view edit
Isotopes
Standard atomic weight	view edit
most stable isotope	view edit
Wikidata
Wikidata *	view edit
* Not used in {{Infobox element}} (2023-01-01) See also {{Index of data sets}} · Cat:data sets (46) · (this table: v )

^ "Standard Atomic Weights: Neodymium". CIAAW. 2005.
^ Prohaska, Thomas; Irrgeher, Johanna; Benefield, Jacqueline; Böhlke, John K.; Chesson, Lesley A.; Coplen, Tyler B.; Ding, Tiping; Dunn, Philip J. H.; Gröning, Manfred; Holden, Norman E.; Meijer, Harro A. J. (2022-05-04). "Standard atomic weights of the elements 2021 (IUPAC Technical Report)". Pure and Applied Chemistry. doi:10.1515/pac-2019-0603. ISSN 1365-3075.
^ ^a ^b ^c ^d ^e Arblaster, John W. (2018). Selected Values of the Crystallographic Properties of Elements. Materials Park, Ohio: ASM International. ISBN 978-1-62708-155-9.
^ Yttrium and all lanthanides except Ce and Pm have been observed in the oxidation state 0 in bis(1,3,5-tri-t-butylbenzene) complexes, see Cloke, F. Geoffrey N. (1993). "Zero Oxidation State Compounds of Scandium, Yttrium, and the Lanthanides". Chem. Soc. Rev. 22: 17–24. doi:10.1039/CS9932200017. and Arnold, Polly L.; Petrukhina, Marina A.; Bochenkov, Vladimir E.; Shabatina, Tatyana I.; Zagorskii, Vyacheslav V.; Cloke (2003-12-15). "Arene complexation of Sm, Eu, Tm and Yb atoms: a variable temperature spectroscopic investigation". Journal of Organometallic Chemistry. 688 (1–2): 49–55. doi:10.1016/j.jorganchem.2003.08.028.
^ Greenwood, Norman N.; Earnshaw, Alan (1997). Chemistry of the Elements (2nd ed.). Butterworth-Heinemann. p. 28. ISBN 978-0-08-037941-8.
^ Gschneidner, K. A.; Eyring, L. (1978). Handbook on the Physics and Chemistry of Rare Earths. Amsterdam: North Holland. ISBN 0444850228.
^ Weast, Robert (1984). CRC, Handbook of Chemistry and Physics. Boca Raton, Florida: Chemical Rubber Company Publishing. pp. E110. ISBN 0-8493-0464-4.
^ ^a ^b ^c ^d Kondev, F. G.; Wang, M.; Huang, W. J.; Naimi, S.; Audi, G. (2021). "The NUBASE2020 evaluation of nuclear properties" (PDF). Chinese Physics C. 45 (3): 030001. doi:10.1088/1674-1137/abddae.

Cite error: There are <ref group=lower-alpha> tags or {{efn}} templates on this page, but the references will not show without a {{reflist|group=lower-alpha}} template or {{notelist}} template (see the help page).

[CIAAWneodymium-1] "Standard Atomic Weights: Neodymium". CIAAW. 2005.

[CIAAW2021-2] Prohaska, Thomas; Irrgeher, Johanna; Benefield, Jacqueline; Böhlke, John K.; Chesson, Lesley A.; Coplen, Tyler B.; Ding, Tiping; Dunn, Philip J. H.; Gröning, Manfred; Holden, Norman E.; Meijer, Harro A. J. (2022-05-04). "Standard atomic weights of the elements 2021 (IUPAC Technical Report)". Pure and Applied Chemistry. doi:10.1515/pac-2019-0603. ISSN 1365-3075.

[Arblaster_2018-3] Arblaster, John W. (2018). Selected Values of the Crystallographic Properties of Elements. Materials Park, Ohio: ASM International. ISBN 978-1-62708-155-9.

[Cloke1993-4] Yttrium and all lanthanides except Ce and Pm have been observed in the oxidation state 0 in bis(1,3,5-tri-t-butylbenzene) complexes, see Cloke, F. Geoffrey N. (1993). "Zero Oxidation State Compounds of Scandium, Yttrium, and the Lanthanides". Chem. Soc. Rev. 22: 17–24. doi:10.1039/CS9932200017. and Arnold, Polly L.; Petrukhina, Marina A.; Bochenkov, Vladimir E.; Shabatina, Tatyana I.; Zagorskii, Vyacheslav V.; Cloke (2003-12-15). "Arene complexation of Sm, Eu, Tm and Yb atoms: a variable temperature spectroscopic investigation". Journal of Organometallic Chemistry. 688 (1–2): 49–55. doi:10.1016/j.jorganchem.2003.08.028.

[GE28-5] Greenwood, Norman N.; Earnshaw, Alan (1997). Chemistry of the Elements (2nd ed.). Butterworth-Heinemann. p. 28. ISBN 978-0-08-037941-8.

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

[8] Weast, Robert (1984). CRC, Handbook of Chemistry and Physics. Boca Raton, Florida: Chemical Rubber Company Publishing. pp. E110. ISBN 0-8493-0464-4.

[NUBASE2020-9] Kondev, F. G.; Wang, M.; Huang, W. J.; Naimi, S.; Audi, G. (2021). "The NUBASE2020 evaluation of nuclear properties" (PDF). Chinese Physics C. 45 (3): 030001. doi:10.1088/1674-1137/abddae.

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