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

Basic Information

Name: Molybdenum
Symbol: Mo
Atomic Number: 42
Atomic Mass: 95.94 amu
Melting Point: 2617.0 °C (2890.15 K, 4742.6 °F)
Boiling Point: 4612.0 °C (4885.15 K, 8333.6 °F)
Number of Protons/Electrons: 42
Number of Neutrons: 54
Classification: Transition Metal
Crystal Structure: Cubic
Density @ 293 K: 10.22 g/cm3
Color: silverish

Atomic Structure

[Bohr Model of Molybdenum]  
Number of Energy Levels: 5

    First Energy Level: 2
    Second Energy Level: 8
    Third Energy Level: 18
    Fourth Energy Level: 13
    Fifth Energy Level: 1


Isotope Half Life
Mo-9115.5 minutes
Mo-933500.0 years
Mo-992.74 days
Mo-10114.6 minutes


Date of Discovery: 1778
Discoverer: Carl Wilhelm Scheele
Name Origin: From the Greek word molubdos (lead)
Uses: aircraft, missiles
Obtained From: molybdenite, wulfenite

Related Links

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MLA Format for Citing This Page

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