Yttrium

Atomic properties
Atomic number	39
Standard atomic weight	88.905 85(2)
Electron configuration	[Kr] 4d1 5s2
Physical properties
Melting point	1530 °C (1803 K)
Boiling point	3264 °C (3537 K)
Density	4.5 g cm−3 (20 °C)
Electric resistivity	57–70 μΩ cm
Chemical properties
Electronegativity	1.22 (Pauling)
Solubility in water	reacts
Ionization energy
	6.217 eV; 602.1 kJ mol−1
Electron affinity
	0.308(12) eV; 29.7(12) kJ mol−1
Atomic radii
Covalent radius	190 pm
Metallic radius	180 pm
Ionic radius	104.0 pm (Y3+, Oh)
Thermodynamic properties
Enthalpy change of atomization	425(8) kJ mol−1
Enthalpy change of fusion	111.5 kJ mol−1
Enthalpy change of vaporization	367 kJ mol−1
Miscellaneous
CAS number	7440-65-5
EC number	231-174-8
	Where appropriate, and unless otherwise stated, data are given for 100 kPa (1 bar) and 298.15 K (25 °C).
	This box: view • talk

strontium ← yttrium → zirconium

Sc
↑
Y
↓
La

Yttrium (symbol: Y) is a chemical element, one of the transition metals and also a rare earth element.

Notes and references

↑ ^1.0 ^1.1 ^1.2 ^1.3 Greenwood, Norman N.; Earnshaw, A. Chemistry of the Elements; Pergamon: Oxford, 1984; pp 1102–10. ISBN 0-08-022057-6.
↑ Allred, A. L. Electronegativity values from thermochemical data. J. Inorg. Nucl. Chem. 1961, 17 (3–4), 215–21. DOI: 10.1016/0022-1902(61)80142-5.
↑ Garton, W. R. S.; Reeves, E. M.; Tomkins, F. S.; Ercoli, B. Rydberg Series and Autoionization Resonances in the Y I Absorption Spectrum. Proc. R. Soc. London, Ser. A 1973, 333, 17–24. DOI: 10.1098/rspa.1973.0044.
↑ Feigerle, C. S.; Herman, Z.; Lineberger, W. C. Laser Photoelectron Spectroscopy of Sc⁻ and Y⁻: A Determination of the Order of Electron Filling in Transition Metal Anions. J. Electron Spectrosc. Relat. Phenom. 1981, 23 (3), 441–50. DOI: 10.1016/0368-2048(81)85050-5.
↑ Cordero, Beatriz; Gómez, Verónica; Platero-Prats, Ana E.; Revés, Marc; Echeverría, Jorge; Cremades, Eduard; Barragán, Flavia; Alvarez, Santiago Covalent radii revisited. Dalton Trans. 2008 (5), 2832–38. DOI: 10.1039/b801115j.
↑ Shannon, R. D. Revised effective ionic radii and systematic studies of interatomic distances in halids and chalcogenides. Acta Crystallogr. A 1976, 32 (5), 751–67. DOI: 10.1107/S0567739476001551.

See also the corresponding article on Wikipedia.

Error creating thumbnail: Unable to save thumbnail to destination

This page is currently licensed under the Creative Commons Attribution 3.0 Unported license and any later versions of that license.