Information valid for Gd-157 unless otherwise noted
[ATOM]

Gadolinium

 [ATOM]

Basic Information


Symbol: Gd
Atomic Number: 64
Mass: 157.25
Melting Point: 1311
Boiling Point: 3233
Number of Protons/Electrons: 64
Number of Neutrons: 93
Classification: Rare Earth
Crystal Structure: Hexagonal
Density: 7.895
Color: Silverish

Atomic Structure

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

    First Energy Level: 2
    Second Energy Level: 8
    Third Energy Level: 18
    Fourth Energy Level: 25
    Fifth Energy Level: 9
    Sixth Energy Level: 2

Isotopes

Isotope Half Life
Gd-14875 years
Gd-1501.8e+006 years
Gd-151124 days
Gd-1521.1e+014 years
Gd-153241.6 days
Gd-154Stable
Gd-155Stable
Gd-156Stable
Gd-157Stable
Gd-158Stable
Gd-15918.6 hours
Gd-160Stable
Gd-1628.4 minutes

Facts


Date of Discovery: 1880
Discoverer: Jean de Marignac
Name Origin: gadolinite (mineral)
Uses: magnetic
Obtained From: gadolinite

Related Links

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