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

Basic Information

Name: Lutetium
Symbol: Lu
Atomic Number: 71
Atomic Mass: 174.967 amu
Melting Point: 1656.0 °C (1929.15 K, 3012.8 °F)
Boiling Point: 3315.0 °C (3588.15 K, 5999.0 °F)
Number of Protons/Electrons: 71
Number of Neutrons: 104
Classification: Rare Earth
Crystal Structure: Hexagonal
Density @ 293 K: 9.85 g/cm3
Color: silvery

Atomic Structure

[Bohr Model of Lutetium]  
Number of Energy Levels: 6

    First Energy Level: 2
    Second Energy Level: 8
    Third Energy Level: 18
    Fourth Energy Level: 32
    Fifth Energy Level: 9
    Sixth Energy Level: 2


Isotope Half Life
Lu-1726.7 days
Lu-172m3.7 minutes
Lu-1731.37 years
Lu-1743.3 years
Lu-174m142.0 days
Lu-1763.6E10 years
Lu-1776.68 days
Lu-177m160.7 days


Date of Discovery: 1907
Discoverer: Georges Urbain
Name Origin: From Lutetia (ancient name of Paris)
Uses: No uses known
Obtained From: gadolinite, xenotime

Related Links

I currently do not know of any links for Lutetium. If you do, please let me know

MLA Format for Citing This Page

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

For more information about citing online sources, please visit the MLA's Website.

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