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

Basic Information

Name: Rhenium
Symbol: Re
Atomic Number: 75
Atomic Mass: 186.207 amu
Melting Point: 3180.0 °C (3453.15 K, 5756.0 °F)
Boiling Point: 5627.0 °C (5900.15 K, 10160.6 °F)
Number of Protons/Electrons: 75
Number of Neutrons: 111
Classification: Transition Metal
Crystal Structure: Hexagonal
Density @ 293 K: 21.02 g/cm3
Color: silverish

Atomic Structure

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

    First Energy Level: 2
    Second Energy Level: 8
    Third Energy Level: 18
    Fourth Energy Level: 32
    Fifth Energy Level: 13
    Sixth Energy Level: 2


Isotope Half Life
Re-1822.67 days
Re-182m12.7 hours
Re-18370.0 days
Re-18438.0 days
Re-184m165.0 days
Re-1863.77 days
Re-1874.1E10 years
Re-18816.94 hours


Date of Discovery: 1925
Discoverer: Walter Noddack
Name Origin: From Rhines provinces of Germany
Uses: filaments for mass spectrographs
Obtained From: gadolinite, molybdenite

Related Links

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MLA Format for Citing This Page

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

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