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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

Number of Energy Levels: 5

First Energy Level:

Second Energy Level:

Third Energy Level:

Fourth Energy Level:

Fifth Energy Level:

Isotopes

Isotope	Half Life
Y-86	14.74 hours
Y-87	3.35 days
Y-88	106.6 days
Y-89	Stable
Y-90	2.67 days
Y-90m	3.19 hours
Y-91	58.51 days
Y-91m	49.71 minutes
Y-92	3.54 hours
Y-93	10.2 hours

Facts

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

MLA Format for Citing This Page

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

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