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Yttrium at Chemical Elements.com
Basic Information | Atomic Structure | Isotopes | Related Links | Citing This Page

Basic Information

Name: Yttrium
Symbol: Y
Atomic Number: 39
Atomic Mass: 88.90585 amu
Melting Point: 1523.0 °C (1796.15 K, 2773.4 °F)
Boiling Point: 3337.0 °C (3610.15 K, 6038.6 °F)
Number of Protons/Electrons: 39
Number of Neutrons: 50
Classification: Transition Metal
Crystal Structure: Hexagonal
Density @ 293 K: 4.469 g/cm3
Color: silvery

Atomic Structure

[Bohr Model of Yttrium]  
Number of Energy Levels: 5

    First Energy Level: 2
    Second Energy Level: 8
    Third Energy Level: 18
    Fourth Energy Level: 9
    Fifth Energy Level: 2


Isotope Half Life
Y-8614.74 hours
Y-873.35 days
Y-88106.6 days
Y-902.67 days
Y-90m3.19 hours
Y-9158.51 days
Y-91m49.71 minutes
Y-923.54 hours
Y-9310.2 hours


Date of Discovery: 1794
Discoverer: Johann Gadolin
Name Origin: After Ytterby (a town in Sweden)
Uses: color TV's, radars
Obtained From: monazite, xenotime, yettriac

Related Links

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MLA Format for Citing This Page

Bentor, Yinon. Chemical Element.com - Yttrium. <http://www.chemicalelements.com/elements/y.html>.

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