Information valid for Zr-91 unless otherwise noted
[ATOM]

Zirconium

 [ATOM]

Basic Information


Symbol: Zr
Atomic Number: 40
Mass: 91.224
Melting Point: 1852
Boiling Point: 4377
Number of Protons/Electrons: 40
Number of Neutrons: 51
Classification: Transition Metal
Crystal Structure: Hexagonal
Density: 6.49
Color: Grayish

Atomic Structure

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

    First Energy Level: 2
    Second Energy Level: 8
    Third Energy Level: 18
    Fourth Energy Level: 10
    Fifth Energy Level: 2

Isotopes

Isotope Half Life
Zr-8616.5 hours
Zr-8883.4 days
Zr-893.27 days
Zr-90Stable
Zr-91Stable
Zr-92Stable
Zr-931.53e+006 years
Zr-94Stable
Zr-9564.02 days
Zr-96Stable
Zr-9716.9 hours

Facts


Date of Discovery: 1789
Discoverer: Martin Klaproth
Name Origin: zircon (mineral)
Uses: nuclear applications
Obtained From: zircon, baddeleyite

Related Links

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