Information valid for Lu-175 unless otherwise noted
[ATOM]

Lutetium

 [ATOM]

Basic Information


Symbol: Lu
Atomic Number: 71
Mass: 174.967
Melting Point: 1656
Boiling Point: 3315
Number of Protons/Electrons: 71
Number of Neutrons: 104
Classification: Rare Earth
Crystal Structure: Hexagonal
Density: 9.85
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

Isotopes

Isotope Half Life
Lu-1726.7 days
Lu-172m3.7 minutes
Lu-1731.37 years
Lu-1743.3 years
Lu-174m142 days
Lu-175Stable
Lu-1763.6e+010 years
Lu-1776.68 days
Lu-177m160.7 days

Facts


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

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