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

Basic Information

Name: Gallium
Symbol: Ga
Atomic Number: 31
Atomic Mass: 69.723 amu
Melting Point: 29.78 °C (302.93 K, 85.604004 °F)
Boiling Point: 2403.0 °C (2676.15 K, 4357.4 °F)
Number of Protons/Electrons: 31
Number of Neutrons: 39
Classification: Other Metals
Crystal Structure: Orthorhombic
Density @ 293 K: 5.907 g/cm3
Color: White/Silver

Atomic Structure

[Bohr Model of Gallium]  
Number of Energy Levels: 4

    First Energy Level: 2
    Second Energy Level: 8
    Third Energy Level: 18
    Fourth Energy Level: 3


Isotope Half Life
Ga-669.5 hours
Ga-673.3 days
Ga-681.1 hours
Ga-7214.1 hours


Date of Discovery: 1875
Discoverer: Paul Emile Lecoq de Boisbaudran
Name Origin: From the Latin word Gallia, the old name of France
Uses: semiconductor production
Obtained From: bauxite, germanite, coal

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

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